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PHP - Filter_var Or Htmlentities() Or Htmlspecialchars()
Hello Guys ... i am new here and i am also new in php i selfstudy html css and js and bootstrap for front-end and for back-back php & mysql & PDO & OOP and i will soon start mvc then laravel and i am trying to secure my input field and i do not want any attacks or sql injects and i see people user filter_var and htmlentities and htmlspecialchars and each one has diffrent opinion can some one help me and tell me what is the best for securing input which all values will store in database thanks <3
Similar TutorialsWhat do most people prefer to use? htmlspecialchars or htmlentities Does anyone have an example of when htmlentities() would be used over htmlspecialchars()? What version of PHP does the function filter_var() come with?? How do I know if I have it installed on my web server? Thanks, Debbie I wrote
<?php Hi,
Is there any way to use the inbuilt filter functions in PHP to filter for integer values greater than 256? All examples that I saw had a max_range of 256. Kindly suggest. Thanks.
function Clean_String($string) { return strtolower(trim(filter_var($string, FILTER_SANITIZE_STRING, FILTER_FLAG_ENCODE_LOW))); } Ive tracked my issue back to filter_var here. For some reason it is adding stuff to the beginning and end of the string im looking for. It did this on 1 string that I noticed and doesnt do it on any others, which was strange because that string was typical like all others. Just a few sentences and numbers and line breaks. I cant find a reason why this is happening I tried parsing through first https://www.jadaliyya.com/Details/28167/The-Empire-of-Sexuality-An-Interview-with-Joseph-Massad then even tried www.google.com and on both I get the following returned
post_url equals: www.google.compost_title equals: testpost_Threadybody equals: Enter your posts... URL equals: www.google.com www.google.com is not a valid URL Web page redirects after 2 seconds. And here is the if statement that handles my filter for URLs
if(isset($_POST["submit"]) && !empty($_POST["url"]) && !empty($_POST["Title"])){
$URL = $conn -> real_escape_string($_POST["url"]) ;
$BodyText = $conn -> real_escape_string(nl2br($_POST["ThreadBody"])) ;
echo "<P>URL equals: " ;
echo $URL ;
echo "<P>" ;
//Change to embed for youtube.
if (filter_var($URL, FILTER_VALIDATE_URL)) {
echo("$URL is a valid URL");
//Check if url is a youtube url
if (strpos($URL,'youtube') !== false) {
echo 'Youtube exists.';
$URL = preg_replace("/\s*[a-zA-Z\/\/:\.]*youtube.com\/watch\?v=([a-zA-Z0-9\-_]+)([a-zA-Z0-9\/\*\-\_\?\&\;\%\=\.]*)/i","<iframe width=\"420\" height=\"315\" src=\"//www.youtube.com/embed/$1\" frameborder=\"0\" allowfullscreen></iframe>",$URL);
} else {
echo 'Youtube is not included .';
$URL = "<ahref ='" . $URL . "</a>" ;
}
$Title = $conn -> real_escape_string($_POST["Title"]) ;
$User = $_SESSION['username'];
$sql = "INSERT INTO Threads (Title, Users, ThreadBody, url)
VALUES ('$Title', '$User','$BodyText','$URL')";
if (mysqli_query($conn, $sql)) {
echo "New record has been added successfully !";
} else {
echo "Error: " . $sql . ":-" . mysqli_error($conn);
}
}
else {
echo("$URL is not a valid URL");
}
I'm having a lot of trouble validating things using custom regex. I'm trying to validate usernames without spaces using numbers and/or letters with optional underscores. This is my code but it isn't validating anything, nothing is ever validated. Whatever I write it says the username isn't valid. if(isset($_POST['submit'])){ if(filter_var($_POST['value1'], FILTER_VALIDATE_REGEXP, array("options"=>array("regexp"=>"/^[\w.-]{{3},{28}}$/")))){ echo "Value is a valid username."; } else { echo "Value is NOT a valid username."; } } ?> Any help regarding this issue will be greatly appreciated. Thanks! Im working with php 5.1.6. With xampp 1.5.14.
Im also working on a stock application. If I want to say add stock product (add_stock.php) this error is generated on screen. It seems to refer to a function in ump.class.php
Here we go,
ump.class.php
<?php
/**
* GUMP - A fast, extensible PHP input validation class
*
* @author Sean Nieuwoudt (http://twitter.com/SeanNieuwoudt)
* @copyright Copyright (c) 2011 Wixel.net
* @link http://github.com/Wixel/GUMP
* @version 1.0
*/
class GUMP
{
// Validation rules for execution
protected $validation_rules = array();
// Filter rules for execution
protected $filter_rules = array();
// Instance attribute containing errors from last run
protected $errors = array();
// ** ------------------------- Validation Data ------------------------------- ** //
public static $basic_tags = "<br><p><a><strong><b><i><em><img><blockquote><code><dd><dl><hr><h1><h2><h3><h4><h5><h6><label><ul><li><span><sub><sup>";
public static $en_noise_words = "about,after,all,also,an,and,another,any,are,as,at,be,because,been,before,
being,between,both,but,by,came,can,come,could,did,do,each,for,from,get,
got,has,had,he,have,her,here,him,himself,his,how,if,in,into,is,it,its,it's,like,
make,many,me,might,more,most,much,must,my,never,now,of,on,only,or,other,
our,out,over,said,same,see,should,since,some,still,such,take,than,that,
the,their,them,then,there,these,they,this,those,through,to,too,under,up,
very,was,way,we,well,were,what,where,which,while,who,with,would,you,your,a,
b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,$,1,2,3,4,5,6,7,8,9,0,_";
// ** ------------------------- Validation Helpers ---------------------------- ** //
/**
* Shorthand method for inline validation
*
* @param array $data The data to be validated
* @param array $validators The GUMP validators
* @return mixed True(boolean) or the array of error messages
*/
public static function is_valid(array $data, array $validators)
{
$gump = new Gump();
$gump->validation_rules($validators);
if($gump->run($data) === false) {
return $gump->get_readable_errors(false);
} else {
return true;
}
}
/**
* Magic method to generate the validation error messages
*
* @return string
*/
public function __toString()
{
return $this->get_readable_errors(true);
}
/**
* Perform XSS clean to prevent cross site scripting
*
* @static
* @access public
* @param array $data
* @return array
*/
public static function xss_clean(array $data)
{
foreach($data as $k => $v)
{
$data[$k] = filter_var($v, FILTER_SANITIZE_STRING);
}
return $data;
}
/**
* Getter/Setter for the validation rules
*
* @param array $rules
* @return array
*/
public function validation_rules(array $rules = array())
{
if(!empty($rules)) {
$this->validation_rules = $rules;
} else {
return $this->validation_rules;
}
}
/**
* Getter/Setter for the filter rules
*
* @param array $rules
* @return array
*/
public function filter_rules(array $rules = array())
{
if(!empty($rules)) {
$this->filter_rules = $rules;
} else {
return $this->filter_rules;
}
}
/**
* Run the filtering and validation after each other
*
* @param array $data
* @return array
* @return boolean
*/
public function run(array $data)
{
$data = $this->filter($data, $this->filter_rules());
$validated = $this->validate(
$data, $this->validation_rules()
);
if($validated !== true) {
return false;
} else {
return $data;
}
}
/**
* Sanitize the input data
*
* @access public
* @param array $data
* @return array
*/
public function sanitize(array $input, $fields = NULL, $utf8_encode = true)
{
$magic_quotes = (bool)get_magic_quotes_gpc();
if(is_null($fields))
{
$fields = array_keys($input);
}
foreach($fields as $field)
{
if(!isset($input[$field]))
{
continue;
}
else
{
$value = $input[$field];
if(is_string($value))
{
if($magic_quotes === TRUE)
{
$value = stripslashes($value);
}
if(strpos($value, "\r") !== FALSE)
{
$value = trim($value);
}
if(function_exists('iconv') && function_exists('mb_detect_encoding') && $utf8_encode)
{
$current_encoding = mb_detect_encoding($value);
if($current_encoding != 'UTF-8' && $current_encoding != 'UTF-16') {
$value = iconv($current_encoding, 'UTF-8', $value);
}
}
$value = filter_var($value, FILTER_SANITIZE_STRING);
}
$input[$field] = $value;
}
}
return $input;
}
/**
* Return the error array from the last validation run
*
* @return array
*/
public function errors()
{
return $this->errors;
}
/**
* Perform data validation against the provided ruleset
*
* @access public
* @param mixed $input
* @param array $ruleset
* @return mixed
*/
public function validate(array $input, array $ruleset)
{
$this->errors = array();
foreach($ruleset as $field => $rules)
{
#if(!array_key_exists($field, $input))
#{
# continue;
#}
$rules = explode('|', $rules);
foreach($rules as $rule)
{
$method = NULL;
$param = NULL;
if(strstr($rule, ',') !== FALSE) // has params
{
$rule = explode(',', $rule);
$method = 'validate_'.$rule[0];
$param = $rule[1];
}
else
{
$method = 'validate_'.$rule;
}
if(is_callable(array($this, $method)))
{
$result = $this->$method($field, $input, $param);
if(is_array($result)) // Validation Failed
{
$this->errors[] = $result;
}
}
else
{
throw new Exception("Validator method '$method' does not exist.");
}
}
}
return (count($this->errors) > 0)? $this->errors : TRUE;
}
/**
* Process the validation errors and return human readable error messages
*
* @param bool $convert_to_string = false
* @param string $field_class
* @param string $error_class
* @return array
* @return string
*/
public function get_readable_errors($convert_to_string = false, $field_class="field", $error_class="error-message")
{
if(empty($this->errors)) {
return ($convert_to_string)? null : array();
}
$resp = array();
foreach($this->errors as $e) {
$field = ucwords(str_replace(array('_','-'), chr(32), $e['field']));
$param = $e['param'];
switch($e['rule']) {
case 'validate_required':
$resp[] = "The <span class=\"$field_class\">$field</span> field is required";
break;
case 'validate_valid_email':
$resp[] = "The <span class=\"$field_class\">$field</span> field is required to be a valid email address";
break;
case 'validate_max_len':
if($param == 1) {
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be shorter than $param character";
} else {
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be shorter than $param characters";
}
break;
case 'validate_min_len':
if($param == 1) {
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be longer than $param character";
} else {
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be longer than $param characters";
}
break;
case 'validate_exact_len':
if($param == 1) {
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be exactly $param character in length";
} else {
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be exactly $param characters in length";
}
break;
case 'validate_alpha':
$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain alpha characters(a-z)";
break;
case 'validate_alpha_numeric':
$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain alpha-numeric characters";
break;
case 'validate_alpha_dash':
$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain alpha characters & dashes";
break;
case 'validate_numeric':
$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain numeric characters";
break;
case 'validate_integer':
$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain a numeric value";
break;
case 'validate_boolean':
$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain a true or false value";
break;
case 'validate_float':
$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain a float value";
break;
case 'validate_valid_url':
$resp[] = "The <span class=\"$field_class\">$field</span> field is required to be a valid URL";
break;
case 'validate_url_exists':
$resp[] = "The <span class=\"$field_class\">$field</span> URL does not exist";
break;
case 'validate_valid_ip':
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to contain a valid IP address";
break;
case 'validate_valid_cc':
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to contain a valid credit card number";
break;
case 'validate_valid_name':
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to contain a valid human name";
break;
case 'validate_contains':
$resp[] = "The <span class=\"$field_class\">$field</span> field needs contain one of these values: ".implode(', ', $param);
break;
case 'validate_street_address':
$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be a valid street address";
break;
}
}
if(!$convert_to_string) {
return $resp;
} else {
$buffer = '';
foreach($resp as $s) {
$buffer .= "<span class=\"$error_class\">$s</span>";
}
return $buffer;
}
}
/**
* Filter the input data according to the specified filter set
*
* @access public
* @param mixed $input
* @param array $filterset
* @return mixed
*/
public function filter(array $input, array $filterset)
{
foreach($filterset as $field => $filters)
{
if(!array_key_exists($field, $input))
{
continue;
}
$filters = explode('|', $filters);
foreach($filters as $filter)
{
$params = NULL;
if(strstr($filter, ',') !== FALSE)
{
$filter = explode(',', $filter);
$params = array_slice($filter, 1, count($filter) - 1);
$filter = $filter[0];
}
if(is_callable(array($this, 'filter_'.$filter)))
{
$method = 'filter_'.$filter;
$input[$field] = $this->$method($input[$field], $params);
}
else if(function_exists($filter))
{
$input[$field] = $filter($input[$field]);
}
else
{
throw new Exception("Filter method '$filter' does not exist.");
}
}
}
return $input;
}
// ** ------------------------- Filters --------------------------------------- ** //
/**
* Replace noise words in a string (http://tax.cchgroup.com/help/Avoiding_noise_words_in_your_search.htm)
*
* Usage: '<index>' => 'noise_words'
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_noise_words($value, $params = NULL)
{
$value = preg_replace('/\s\s+/u', chr(32),$value);
$value = " $value ";
$words = explode(',', self::$en_noise_words);
foreach($words as $word)
{
$word = trim($word);
$word = " $word "; // Normalize
if(stripos($value, $word) !== FALSE)
{
$value = str_ireplace($word, chr(32), $value);
}
}
return trim($value);
}
/**
* Remove all known punctuation from a string
*
* Usage: '<index>' => 'rmpunctuataion'
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_rmpunctuation($value, $params = NULL)
{
return preg_replace("/(?![.=$'€%-])\p{P}/u", '', $value);
}
/**
* Translate an input string to a desired language [DEPRECIATED]
*
* Any ISO 639-1 2 character language code may be used
*
* See: http://www.science.co.il/language/Codes.asp?s=code2
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
/*
protected function filter_translate($value, $params = NULL)
{
$input_lang = 'en';
$output_lang = 'en';
if(is_null($params))
{
return $value;
}
switch(count($params))
{
case 1:
$input_lang = $params[0];
break;
case 2:
$input_lang = $params[0];
$output_lang = $params[1];
break;
}
$text = urlencode($value);
$translation = file_get_contents(
"http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q={$text}&langpair={$input_lang}|{$output_lang}"
);
$json = json_decode($translation, true);
if($json['responseStatus'] != 200)
{
return $value;
}
else
{
return $json['responseData']['translatedText'];
}
}
*/
/**
* Sanitize the string by removing any script tags
*
* Usage: '<index>' => 'sanitize_string'
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_sanitize_string($value, $params = NULL)
{
return filter_var($value, FILTER_SANITIZE_STRING);
}
/**
* Sanitize the string by urlencoding characters
*
* Usage: '<index>' => 'urlencode'
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_urlencode($value, $params = NULL)
{
return filter_var($value, FILTER_SANITIZE_ENCODED);
}
/**
* Sanitize the string by converting HTML characters to their HTML entities
*
* Usage: '<index>' => 'htmlencode'
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_htmlencode($value, $params = NULL)
{
return filter_var($value, FILTER_SANITIZE_SPECIAL_CHARS);
}
/**
* Sanitize the string by removing illegal characters from emails
*
* Usage: '<index>' => 'sanitize_email'
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_sanitize_email($value, $params = NULL)
{
return filter_var($value, FILTER_SANITIZE_EMAIL);
}
/**
* Sanitize the string by removing illegal characters from numbers
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_sanitize_numbers($value, $params = NULL)
{
return filter_var($value, FILTER_SANITIZE_NUMBER_INT);
}
/**
* Filter out all HTML tags except the defined basic tags
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_basic_tags($value, $params = NULL)
{
return strip_tags($value, self::$basic_tags);
}
/**
* Filter out all SQL Valnurablities
*
* @access protected
* @param string $value
* @param array $params
* @return string
*/
protected function filter_mysql_escape($value, $params = NULL)
{
return mysql_real_escape_string($value);
}
// ** ------------------------- Validators ------------------------------------ ** //
/**
* Verify that a value is contained within the pre-defined value set
*
* Usage: '<index>' => 'contains,value value value'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_contains($field, $input, $param = NULL)
{
$param = trim(strtolower($param));
$value = trim(strtolower($input[$field]));
if (preg_match_all('#\'(.+?)\'#', $param, $matches, PREG_PATTERN_ORDER)) {
$param = $matches[1];
} else {
$param = explode(chr(32), $param);
}
if(in_array($value, $param)) { // valid, return nothing
return;
} else {
return array(
'field' => $field,
'value' => $value,
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Check if the specified key is present and not empty
*
* Usage: '<index>' => 'required'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_required($field, $input, $param = NULL)
{
if(isset($input[$field]) && trim($input[$field]) != '')
{
return;
}
else
{
return array(
'field' => $field,
'value' => NULL,
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided email is valid
*
* Usage: '<index>' => 'valid_email'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_valid_email($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!filter_var($input[$field], FILTER_VALIDATE_EMAIL))
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value length is less or equal to a specific value
*
* Usage: '<index>' => 'max_len,240'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_max_len($field, $input, $param = NULL)
{
if(!isset($input[$field]))
{
return;
}
if(function_exists('mb_strlen'))
{
if(mb_strlen($input[$field]) <= (int)$param)
{
return;
}
}
else
{
if(strlen($input[$field]) <= (int)$param)
{
return;
}
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
/**
* Determine if the provided value length is more or equal to a specific value
*
* Usage: '<index>' => 'min_len,4'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_min_len($field, $input, $param = NULL)
{
if(!isset($input[$field]))
{
return;
}
if(function_exists('mb_strlen'))
{
if(mb_strlen($input[$field]) >= (int)$param)
{
return;
}
}
else
{
if(strlen($input[$field]) >= (int)$param)
{
return;
}
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
/**
* Determine if the provided value length matches a specific value
*
* Usage: '<index>' => 'exact_len,5'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_exact_len($field, $input, $param = NULL)
{
if(!isset($input[$field]))
{
return;
}
if(function_exists('mb_strlen'))
{
if(mb_strlen($input[$field]) == (int)$param)
{
return;
}
}
else
{
if(strlen($input[$field]) == (int)$param)
{
return;
}
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
/**
* Determine if the provided value contains only alpha characters
*
* Usage: '<index>' => 'alpha'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_alpha($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!preg_match("/^([a-zÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ])+$/i", $input[$field]) !== FALSE)
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value contains only alpha-numeric characters
*
* Usage: '<index>' => 'alpha_numeric'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_alpha_numeric($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!preg_match("/^([a-z0-9ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ])+$/i", $input[$field]) !== FALSE)
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value contains only alpha characters with dashed and underscores
*
* Usage: '<index>' => 'alpha_dash'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_alpha_dash($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!preg_match("/^([a-z0-9ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ_-])+$/i", $input[$field]) !== FALSE)
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value is a valid number or numeric string
*
* Usage: '<index>' => 'numeric'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_numeric($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!is_numeric($input[$field]))
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value is a valid integer
*
* Usage: '<index>' => 'integer'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_integer($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!filter_var($input[$field], FILTER_VALIDATE_INT))
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value is a PHP accepted boolean
*
* Usage: '<index>' => 'boolean'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_boolean($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
$bool = filter_var($input[$field], FILTER_VALIDATE_BOOLEAN);
if(!is_bool($bool))
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value is a valid float
*
* Usage: '<index>' => 'float'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_float($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!filter_var($input[$field], FILTER_VALIDATE_FLOAT))
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value is a valid URL
*
* Usage: '<index>' => 'valid_url'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_valid_url($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!filter_var($input[$field], FILTER_VALIDATE_URL))
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if a URL exists & is accessible
*
* Usage: '<index>' => 'url_exists'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_url_exists($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
$url = str_replace(
array('http://', 'https://', 'ftp://'), '', strtolower($input[$field])
);
if(function_exists('checkdnsrr'))
{
if(!checkdnsrr($url))
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
else
{
if(gethostbyname($url) == $url)
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
}
/**
* Determine if the provided value is a valid IP address
*
* Usage: '<index>' => 'valid_ip'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_valid_ip($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!filter_var($input[$field], FILTER_VALIDATE_IP) !== FALSE)
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value is a valid IPv4 address
*
* Usage: '<index>' => 'valid_ipv4'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_valid_ipv4($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!filter_var($input[$field], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== FALSE)
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided value is a valid IPv6 address
*
* Usage: '<index>' => 'valid_ipv6'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_valid_ipv6($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
if(!filter_var($input[$field], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) !== FALSE)
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the input is a valid credit card number
*
* See: http://stackoverflow.com/questions/174730/what-is-the-best-way-to-validate-a-credit-card-in-php
* Usage: '<index>' => 'valid_cc'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_valid_cc($field, $input, $param = NULL)
{
if(!isset($input[$field]) || empty($input[$field]))
{
return;
}
$number = preg_replace('/\D/', '', $input[$field]);
if(function_exists('mb_strlen'))
{
$number_length = mb_strlen($input[$field]);
}
else
{
$number_length = strlen($input[$field]);
}
$parity = $number_length % 2;
$total = 0;
for($i = 0; $i < $number_length; $i++)
{
$digit = $number[$i];
if ($i % 2 == $parity)
{
$digit *= 2;
if ($digit > 9)
{
$digit -= 9;
}
}
$total += $digit;
}
if($total % 10 == 0)
{
return; // Valid
}
else
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the input is a valid human name [Credits to http://github.com/ben-s]
*
* See: https://github.com/Wixel/GUMP/issues/5
* Usage: '<index>' => 'valid_name'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_valid_name($field, $input, $param = NULL)
{
if(!isset($input[$field])|| empty($input[$field]))
{
return;
}
if(!preg_match("/^([a-zÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïñðòóôõöùúûüýÿ '-])+$/i", $input[$field]) !== FALSE)
{
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
/**
* Determine if the provided input is likely to be a street address using weak detection
*
* Usage: '<index>' => 'street_address'
*
* @access protected
* @param string $field
* @param array $input
* @return mixed
*/
protected function validate_street_address($field, $input, $param = NULL)
{
if(!isset($input[$field])|| empty($input[$field]))
{
return;
}
// Theory: 1 number, 1 or more spaces, 1 or more words
$hasLetter = preg_match('/[a-zA-Z]/', $input[$field]);
$hasDigit = preg_match('/\d/' , $input[$field]);
$hasSpace = preg_match('/\s/' , $input[$field]);
$passes = $hasLetter && $hasDigit && $hasSpace;
if(!$passes) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param
);
}
}
} // EOC
Here is add_stock.php
<?php
include_once("init.php");
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>POSNIC - Add Stock Category</title>
<!-- Stylesheets -->
<link href='http://fonts.googleapis.com/css?family=Droid+Sans:400,700' rel='stylesheet'>
<link rel="stylesheet" href="css/style.css">
<link rel="stylesheet" href="js/date_pic/date_input.css">
<link rel="stylesheet" href="lib/auto/css/jquery.autocomplete.css">
<!-- Optimize for mobile devices -->
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<!-- jQuery & JS files -->
<?php include_once("tpl/common_js.php"); ?>
<script src="js/script.js"></script>
<script src="js/date_pic/jquery.date_input.js"></script>
<script src="lib/auto/js/jquery.autocomplete.js "></script>
<script>
/*$.validator.setDefaults({
submitHandler: function() { alert("submitted!"); }
});*/
$(document).ready(function() {
$("#supplier").autocomplete("supplier1.php", {
width: 160,
autoFill: true,
selectFirst: true
});
$("#category").autocomplete("category.php", {
width: 160,
autoFill: true,
selectFirst: true
});
// validate signup form on keyup and submit
$("#form1").validate({
rules: {
name: {
required: true,
minlength: 3,
maxlength: 200
},
stockid: {
required: true,
minlength: 3,
maxlength: 200
},
cost: {
required: true,
},
sell: {
required: true,
}
},
messages: {
name: {
required: "Please Enter Stock Name",
minlength: "Category Name must consist of at least 3 characters"
},
stockid: {
required: "Please Enter Stock ID",
minlength: "Category Name must consist of at least 3 characters"
},
sell: {
required: "Please Enter Selling Price",
minlength: "Category Name must consist of at least 3 characters"
},
cost: {
required: "Please Enter Cost Price",
minlength: "Category Name must consist of at least 3 characters"
}
}
});
});
function numbersonly(e){
var unicode=e.charCode? e.charCode : e.keyCode
if (unicode!=8 && unicode!=46 && unicode!=37 && unicode!=38 && unicode!=39 && unicode!=40 && unicode!=9){ //if the key isn't the backspace key (which we should allow)
if (unicode<48||unicode>57)
return false
}
}
</script>
</script>
</head>
<body>
<!-- TOP BAR -->
<?php include_once("tpl/top_bar.php"); ?>
<!-- end top-bar -->
<!-- HEADER -->
<div id="header-with-tabs">
<div class="page-full-width cf">
<ul id="tabs" class="fl">
<li><a href="dashboard.php" class="dashboard-tab">Dashboard</a></li>
<li><a href="view_sales.php" class="sales-tab">Sales</a></li>
<li><a href="view_customers.php" class=" customers-tab">Customers</a></li>
<li><a href="view_purchase.php" class="purchase-tab">Purchase</a></li>
<li><a href="view_supplier.php" class=" supplier-tab">Supplier</a></li>
<li><a href="view_product.php" class="active-tab stock-tab">Stocks / Products</a></li>
<li><a href="view_payments.php" class="payment-tab">Payments / Outstandings</a></li>
<li><a href="view_report.php" class="report-tab">Reports</a></li>
</ul> <!-- end tabs -->
<!-- Change this image to your own company's logo -->
<!-- The logo will automatically be resized to 30px height. -->
<a href="#" id="company-branding-small" class="fr"><img src="<?php if(isset($_SESSION['logo'])) { echo "upload/".$_SESSION['logo'];}else{ echo "upload/posnic.png"; } ?>" alt="Point of Sale" /></a>
</div> <!-- end full-width -->
</div> <!-- end header -->
<!-- MAIN CONTENT -->
<div id="content">
<div class="page-full-width cf">
<div class="side-menu fl">
<h3>Stock Management</h3>
<ul>
<li><a href="add_stock.php">Add Stock/Product</a></li>
<li><a href="view_product.php">View Stock/Product</a></li>
<li><a href="add_category.php">Add Stock Category</a></li>
<li><a href="view_category.php">view Stock Category</a></li>
<li><a href="view_stock_availability.php">view Stock Available</a></li>
</ul>
</div> <!-- end side-menu -->
<div class="side-content fr">
<div class="content-module">
<div class="content-module-heading cf">
<h3 class="fl">Add Stock </h3>
<span class="fr expand-collapse-text">Click to collapse</span>
<div style="margin-top: 15px;margin-left: 150px"></div>
<span class="fr expand-collapse-text initial-expand">Click to expand</span>
</div> <!-- end content-module-heading -->
<div class="content-module-main cf">
<?php
//Gump is libarary for Validatoin
if(isset($_POST['name'])){
$_POST = $gump->sanitize($_POST);
$gump->validation_rules(array(
'name' => 'required|max_len,100|min_len,3',
'stockid' => 'required|max_len,200',
'sell' => 'required|max_len,200',
'cost' => 'required|max_len,200',
'supplier' => 'max_len,200',
'category' => 'max_len,200'
));
$gump->filter_rules(array(
'name' => 'trim|sanitize_string|mysql_escape',
'stockid' => 'trim|sanitize_string|mysql_escape',
'sell' => 'trim|sanitize_string|mysql_escape',
'cost' => 'trim|sanitize_string|mysql_escape',
'category' => 'trim|sanitize_string|mysql_escape',
'supplier' => 'trim|sanitize_string|mysql_escape'
));
$validated_data = $gump->run($_POST);
$name = "";
$stockid = "";
$sell = "";
$cost = "";
$supplier = "";
$category = "";
if($validated_data === false) {
echo $gump->get_readable_errors(true);
} else {
$name=mysql_real_escape_string($_POST['name']);
$stockid=mysql_real_escape_string($_POST['stockid']);
$sell=mysql_real_escape_string($_POST['sell']);
$cost=mysql_real_escape_string($_POST['cost']);
$supplier=mysql_real_escape_string($_POST['supplier']);
$category=mysql_real_escape_string($_POST['category']);
$count = $db->countOf("stock_details", "stock_name ='$name'");
if($count>1)
{
$data='Dublicat Entry. Please Verify';
$msg='<p style=color:red;font-family:gfont-family:Georgia, Times New Roman, Times, serif>'.$data.'</p>';//
?>
<script src="dist/js/jquery.ui.draggable.js"></script>
<script src="dist/js/jquery.alerts.js"></script>
<script src="dist/js/jquery.js"></script>
<link rel="stylesheet" href="dist/js/jquery.alerts.css" >
<script type="text/javascript">
jAlert('<?php echo $msg; ?>', 'POSNIC');
</script>
<?php
}
else
{
if($db->query("insert into stock_details(stock_id,stock_name,stock_quatity,supplier_id,company_price,selling_price,category) values('$stockid','$name',0,'$supplier',$cost,$sell,'$category')"))
{
$db->query("insert into stock_avail(name,quantity) values('$name',0)");
$msg=" $name Stock Details Added" ;
header("Location: add_stock.php?msg=$msg");
}else
echo "<br><font color=red size=+1 >Problem in Adding !</font>" ;
}
}
}
if(isset($_GET['msg'])){
$data=$_GET['msg'];
$msg='<p style=color:#153450;font-family:gfont-family:Georgia, Times New Roman, Times, serif>'.$data.'</p>';//
?>
<script src="dist/js/jquery.ui.draggable.js"></script>
<script src="dist/js/jquery.alerts.js"></script>
<script src="dist/js/jquery.js"></script>
<link rel="stylesheet" href="dist/js/jquery.alerts.css" >
<script type="text/javascript">
jAlert('<?php echo $msg; ?>', 'POSNIC');
</script>
<?php
}
?>
<form name="form1" method="post" id="form1" action="">
<table class="form" border="0" cellspacing="0" cellpadding="0">
<tr>
<?php
$max = $db->maxOfAll("id", "stock_details");
$max=$max+1;
$autoid="SD".$max."";
?>
<td><span class="man">*</span>Stock ID:</td>
<td><input name="stockid" type="text" id="stockid" readonly maxlength="200" class="round default-width-input" value="<?php echo $autoid; ?>" /></td>
<td><span class="man">*</span>Name:</td>
<td><input name="name"placeholder="ENTER CATEGORY NAME" type="text" id="name" maxlength="200" class="round default-width-input" value="<?php echo $name; ?>" /></td>
</tr>
<tr>
<td><span class="man">*</span>Cost:</td>
<td><input name="cost" placeholder="ENTER COST PRICE" type="text" id="cost" maxlength="200" class="round default-width-input" onkeypress="return numbersonly(event)" value="<?php echo $cost; ?>" /></td>
<td><span class="man">*</span>Sell:</td>
<td><input name="sell" placeholder="ENTER SELLING PRICE" type="text" id="sell" maxlength="200" class="round default-width-input" onkeypress="return numbersonly(event)" value="<?php echo $sell; ?>" /></td>
</tr>
<tr>
<td>Supplier:</td>
<td><input name="supplier" placeholder="ENTER SUPPLIER NAME" type="text" id="supplier" maxlength="200" class="round default-width-input" value="<?php echo $supplier; ?>" /></td>
<td>Category:</td>
<td><input name="category" placeholder="ENTER CATEGORY NAME" type="text" id="category" maxlength="200" class="round default-width-input" value="<?php echo $category; ?>" /></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
</td>
<td>
<input class="button round blue image-right ic-add text-upper" type="submit" name="Submit" value="Add">
(Control + S)
<td align="right"><input class="button round red text-upper" type="reset" name="Reset" value="Reset"> </td>
</tr>
</table>
</form>
</div> <!-- end content-module-main -->
</div> <!-- end content-module -->
</div> <!-- end full-width -->
</div> <!-- end content -->
<!-- FOOTER -->
<div id="footer">
<p>Any Queries email to <a href="mailto:sridhar.posnic@gmail.com?subject=Stock%20Management%20System">sridhar.posnic@gmail.com</a>.</p>
</div> <!-- end footer -->
</body>
</html>
now who can tell me what is wrong with the function filter_var() method on line 186 in ump.class.php?
Hi, should i use htmlspecialchars() when i write in mysql or when i read from mysql, and should i use another function for safety ? I'm getting this error and not sure my fix. <b>Warning</b>: htmlspecialchars() expects parameter 1 to be string, array given in <b>/home/xtremer/public_html/efedmanager/processes/polls.php</b> on line <b>13</b><br /> $answer = explode(',', $_POST['answersList']); $answer = htmlspecialchars($answer); Hello and thanks in advance for any help. Overview: Im tyring to pull data from a XML api using simpleXML. I have ran into a problem with special characters and entities that simpleXML does not accept. IE " " Ive tried all the solutions i could find to no avail. SimpleXML gives me this error. parser error : Entity 'nbsp' not defined in Here is my code. Code: [Select] $feed = simplexml_load_file('URL TO API FEED'); $feed = html_entity_decode($feed); $feed = str_ireplace(array('<','>','&','\'','"'),array('<','>','&',''','"'),$feed); echo 'Game Title: ' .$feed->game. '</br>'; echo 'Ponts Earned: ' .$feed->gamerscore. '</br>'; echo 'Total Achievements: ' .$feed->totalachievements. '</br>'; foreach($feed->achievements->achievement as $ach) { $output = htmlentities($feed->title, ENT_QUOTES, "UTF-8"); echo $output; if( !empty($ach->unlockedartwork)){ echo '<img src=' .$ach->unlockedartwork. '></img></br>'; }else { echo '<img src=' .$ach->artwork. '></img></br>'; } } Here is the code im trying to retrieve. Code: [Select] <achievement id="40"> <title>Have Gun Will Travel </title> <artwork>http://</artwork> <gamerscore>20</gamerscore> <unlocked>true</unlocked> <unlockdate>7/4/2010</unlockdate> </achievement> I need to put this inside of a p tag so I can change some properties but everything I've tried doesn't work and just shows nothing.
I've tried this:
printf('<p style="text-align: left; width: 500px;">', htmlspecialchars($fetch['shout'], ENT_QUOTES, 'UTF-8'), '</p>');
This is what I need to be wrapped in p tags:
htmlspecialchars($fetch['shout'], ENT_QUOTES, 'UTF-8');EDIT: I've noticed the code below works but when I style it inside of the tag the text won't show, should I include a CSS file on the PHP file? echo "<p>".htmlspecialchars($fetch['shout'])."</p>\n";EDIT: I just needed to create the CSS for the p tags in the index and it worked perfectly fine. Sorry for the pointless thread. Edited by Alanay, 18 December 2014 - 09:14 AM. which one is necessary while protecting form field Edited July 28, 2019 by mahendaNow, I'm trying to figure out some security factors of a website with a login etc. Would I need to add and strip slashes if I'm using htmlentities on anything that the user enters? I can't seem to get htmlentities working in the code below... echo "<textarea id=\"question" . $questionNo . " name=\"qaArray[\"answerText\"]\" cols=\"60\" rows=\"2\">" . (isset($questionNo) ? "htmlentities($qaArray[\"answerText\"], ENT_QUOTES" : "") . "</textarea>"; I tried using the default single quotes around answerText but that doesn't, nor do my escaped double quotes. What is wrong? Thanks, Debbie I don't really understand what htmlentities() does and when to use it?! The manual says this... <?php $str = "A 'quote' is <b>bold</b>"; // Outputs: A 'quote' is <b>bold</b> echo htmlentities($str); // Outputs: A &#039;quote&#039; is <b>bold</b> echo htmlentities($str, ENT_QUOTES); ?> 1.) Isn't there a way to print this... Code: [Select] $str = "A 'quote' is <b>bold</b>"; ...as this... Quote A 'quote' is <b>bold</b> That is, WYSIWYG. 2.) When and why would you want this displayed... Quote A 'quote' is <b>bold</b> I am trying to make my code more secure, and I was told to use something like this on all code that comes from the User and needs to be output, but I'm a little lost here... echo ' <div class="userInfo"> <a href="#" class="username"> <strong>' . nl2br(htmlentities($username)) . '</strong> </a>'; Debbie Wondering about htmlentities() as I have a rich text editor implemented on my website, how would I correctly use htmlentities() as I still want the data which was put into the rich text editor to correctly show, sorry for me being a bit vague, it is late and im tired but hope someone can shine some light on this for me Think i've got my self a little confused here. htmlentities This function is designed to try and keep clients safe. If the comment the user inputs can only ever be seen by him or her, then in theory is there no need to use htmlentities as any dodgy script would only affect them. Is this correct thinking? |
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