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PHP - Number Validation
I have to do an assignment for school where I create an html page and a separate page for php. The code is to sum two numbers and return an error if the value entered is not numeric. The sum portion is working; however the numeric validation is not. The code is he
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Enter your information in the form below</title> </head> <body> <!-- Form2.html --> <form action="Form2.php" method="post"> <fieldset><legend> Enter a number in the form below:</legend> <p><b>number 1: <input type="text" name="number1" size="4" maxlength="4" /></b></p> <p><b>number 2: <input type="text" name="number2" size="4" maxlength="4" /></b></p> </fieldset> <div align="center"><input type="submit" name="submit" value="Submit"/></div> </form> </body> </html>
<html>
<body>
<?php
$number1 = $_POST['number1'];
$number2 = $_POST['number2'];
$sum = $number1+$number2;
if (!empty($number1)&& !empty($number2))
{
if(!is_numeric($number1))
{
echo "The value you entered for number 1 is not a number. Please enter a numeric value for number 1";
}
else if(!is_numeric($number2))
{
echo "The value you entered for number 2 is not a number. Please enter a numeric value for number 2";
}
else
{
echo "The sum of the numbers is: ".$sum;
}
}
?>
</body>
</html>
Similar TutorialsHi All, I only want to allow phone number in ###-###-####. Anything else I want an error. Here is what I have, which says any number is valid. Function: function checkPhone($number) { if(preg_match('^[0-9]{3}+-[0-9]{3}+-[0-9]{4}^', $number)) { return $number; } else { $items = Array('/\ /', '/\+/', '/\-/', '/\./', '/\,/', '/\(/', '/\)/', '/[a-zA-Z]/'); $clean = preg_replace($items, '', $number); return substr($clean, 0, 3).'-'.substr($clean, 3, 3).'-'.substr($clean, 6, 4); } } Checking Number: $number = '1231231234'; if(checkPhone($number)) { echo $number.' is a valid phone number.'; } else { echo $number.' is not a valid phone number.'; } This should give me the not valid message. Thanks I have a form in which I want it to accept US phone formats, ie (123) 123-1234, 123-123-1234, 1-123-123-1234, etc.. Below is my code and I would really appreciate it if someone can tell me what I need to accept the #s. Thank you! $session = $_SESSION['verify']; $error = ''; if(trim($name) == '') { $error .= '<li>Your name is required.</li>'; } if(trim($email) == '') { $error .= '<li>Your e-mail address is required.</li>'; } elseif(!isEmail($email)) { $error .= '<li>You have entered an invalid e-mail address.</li>'; } if(trim($phone) == '') { $error .= '<li>Your phone number is required.</li>'; } elseif(!is_numeric($phone)) { $error .= '<li>Your phone number can only contain digits.</li>'; } if(trim($comments) == '') { $error .= '<li>You must enter a message to send.</li>'; } if($session != $verify) { $error .= '<li>The verification code you entered is incorrect.</li>'; } if($error != '') { echo '<div class="error_message">Attention! Please correct the errors below and try again.'; echo '<ul class="error_messages">' . $error . '</ul>'; echo '</div>'; } else { if(get_magic_quotes_gpc()) { $comments = stripslashes($comments); } Alright so I am writing up a function to verify various formats of US based phone numbers.. And I seemed to have run into a snag. This is what I have gotten so far, and for the most part works well. Code: [Select] function validate_phoneUS($number){ $numStripX = array('(', ')', '-', '.', '+'); $numCheck = str_replace($numStripX, '', $number); $firstNum = substr($number, 0, 1); if(($firstNum == 0) || ($firstNum == 1)) {return false;} elseif(!is_numeric($numCheck)){return false;} elseif(strlen($numCheck) > 10){return false;} elseif(strlen($numCheck) < 10){return false;} else{ $formats = array('###-###-####', '(###) ###-####', '(###)###-####', '##########', '###.###.####', '(###) ###.####', '(###)###.####'); $format = trim(ereg_replace("[0-9]", "#", $number)); return (in_array($format, $formats)) ? true : false; } } When I try to run these test numbers down the line.. Code: [Select] $number1 = '0234567890'; $number2 = '1234567890'; $number3 = "(555)555-5555"; $number4 = '555-555-5555'; $number5 = '555.555.5555'; $number6 = '5555555555'; $number7 = "(555) 555-5555"; I get these as a result.. 0234567890 is bad. 1234567890 is bad. (555)555-5555 is bad. 555-555-5555 is a valid phone number. 555.555.5555 is a valid phone number. 5555555555 is a valid phone number. (555) 555-5555 is bad. Where I am stuck is on the numbers that have the parenthesis wrapped around them. For a while I had it working with them and coming back as a valid number, and then I changed a couple things else where for something else. and now they come back as bad. I am getting tired, and I need some extra eyes to help me figure this out.. what did I snag myself on? Can anyone tell me why this bit of coding isn't working. I want a a form to validate the telephone number for the UK and been having a bash around with various ways to code this, with no success so far. I started with FILTER_VALIDATE_INT, but found out that "0" wouldnt be taken so I added FILTER_FLAG_ALLOW_OCTAL. But then it seems that the spaces, dashes wouldn't be taken as well as a limit on 10 characters occured. So I tried to write myself a small function that used an array to validate the styles etc... But this seemed to allow any string character. So I moved on to preg_match, but I can't seem toget my coding to work. It's driving me mad now, probably just need a break But any help will be much appericated! [ if (!empty($_SESSION['add_customer_form'] ["telephone_no"])) { //if (!is_numeric($number)) //if(!filter_var($int, )) $number = $_POST["telephone_no"]; if(!preg_match("/^(+)?(([0-9]+)-?s?)*([0-9]+-[0-9]+)*([0-9]+)*$/", trim($number))) { $_SESSION['add_customer_errors']["telephone_no"] = ("$number Sorry, but you′ve entered an incorrect fromat"); } //if( !preg_match("/^([1]-)?[0-9]{3}-[0-9]{3}-[0-9]{4}$/i", $_SESSION['add_customer_errors']["telephone_no"]) ) //{ /// $number = $_POST["telephone_no"]; //$_SESSION['add_customer_errors']["telephone_no"] = ("$number Sorry, but you′ve entered an incorrect fromat"); //} } ] I'm getting the dreaded " Invalid parameter number: number of bound variables does not match number of tokens" error and I've looked at this for days. Here is what my table looks like:
| id | int(4) | NO | PRI | NULL | auto_increment | | user_id | int(4) | NO | | NULL | | | recipient | varchar(30) | NO | | NULL | | | subject | varchar(25) | YES | | NULL | | | cc_email | varchar(30) | YES | | NULL | | | reply | varchar(20) | YES | | NULL | | | location | varchar(50) | YES | | NULL | | | stationery | varchar(40) | YES | | NULL | | | ink_color | varchar(12) | YES | | NULL | | | fontchosen | varchar(30) | YES | | NULL | | | message | varchar(500) | NO | | NULL | | | attachment | varchar(40) | YES | | NULL | | | messageDate | datetime | YES | | NULL |Here are my params:
$params = array(
':user_id' => $userid,
':recipient' => $this->message_vars['recipient'],
':subject' => $this->message_vars['subject'],
':cc_email' => $this->message_vars['cc_email'],
':reply' => $this->message_vars['reply'],
':location' => $this->message_vars['location'],
':stationery' => $this->message_vars['stationery'],
':ink_color' => $this->message_vars['ink_color'],
':fontchosen' => $this->message_vars['fontchosen'],
':message' => $messageInput,
':attachment' => $this->message_vars['attachment'],
':messageDate' => $date );
Here is my sql:
$sql = "INSERT INTO messages (user_id,recipient, subject, cc_email, reply, location,stationery, ink_color, fontchosen, message,attachment) VALUES( $userid, :recipient, :subject, :cc_email, :reply, :location, :stationery, :ink_color, :fontchosen, $messageInput, :attachment, $date);";
And lastly, here is how I am calling it:
$dbh = parent::$dbh;
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);
if (empty($dbh)) return false;
$stmt = $dbh->prepare($sql);
$stmt->execute($params) or die(print_r($stmt->errorInfo(), true));
if (!$stmt) { print_r($dbh->errorInfo()); }
I know my userid is valid and and the date is set above (I've echo'd these out to make sure). Since the id is auto_increment, I do not put that in my sql (though I've tried that too), nor in my params (tried that too). What am I missing? I feel certain it is something small, but I have spent days checking commas, semi-colons and spelling. Can anyone see what I'm doing wrong?
Hello,
I have problem durring binding update query. I can't find what is causing problem.
public function Update(Entry $e)
{
try
{
$query = "update entry set string = $e->string,delimiter=$e->delimiter where entryid= $e->id";
$stmt = $this->db->mysqli->prepare($query);
$stmt->bind_param('ssi',$e->string,$e->delimiter,$e->id);
$stmt->close();
}
catch(Exception $ex)
{
print 'Error: ' .$ex->getMessage();
}
}
When I run function update I'm getting next error:Warning: mysqli_stmt::bind_param(): Number of variables doesn't match number of parameters in prepared statement
Can you help me to solve this problem ?
Edited by danchi, 17 October 2014 - 10:25 AM. I need to display a number(the number is retrieved from the db) in the form input field such that only the last 4 digits is visbile, the remaining can be masked as * or X or whatever is applicable. I know the last 4 can be obtained as follows: Code: [Select] $number=substr($number,-4,4); But when i hit the submit button the form validates the input field and checks if the number is a valid number of a specific format. Therefore when I click on the submit button then I should still be able to unmask the masked numbers or do something similar that would help me validate the whole number. Code: [Select] <input type="text" name="no" value="<?php if(!empty($number)){ echo $number;} ?>"> Hey I have a string that looks like the following: Quote top-php-tutorials-2.html I have a script that cycles through each page. The 2 in the quote above is the page number. How can I extract the number between the - and the .html and replace it with another number? I've tried Code: [Select] substr($engine->selectedcaturl, 0,-6).$v.".html"But then I realised this only works for numbers that are 1 digit long Any input would be appreciated hello, i have a start time and an end time (no dates). the following works great, except for when the start time is at night, and the end time is in the morning. im thinking if i can do an if the number is negative, add 24, that it will resolve my issue. any ideas? Code: [Select] $tbilled = $tfinish - $tstart; How can I test if a string has a number at the end? i.e. smith1 instead of smith? I won't know how long the string is or whether there is more than 1 number but I will know that the string's last character is a number. Thank you! I have these numbers in an array: 14042 11130 10100 10100 9506 How can I add them all together? Was thinking about a while loop. Derp. >array_sum solved! Hi all, I'm trying to build a simple shopping cart, there are only 8 products and I want to save the quantity value into a section for each product (product1, product2, etc). I'm having a problem where the I can't get the session value to increase by one if the same item is added to the cart again. Here is the code I have so far, am I missing something or is there a php setting that would cause this not to work.
<?php
session_start();
// setup
if(!isset($_SESSION['product1']))
$_SESSION['product1'] = 0;
if(!isset($_SESSION['product2']))
$_SESSION['product2'] = 0;
if(!isset($_SESSION['product3']))
$_SESSION['product3'] = 0;
if(!isset($_SESSION['product4']))
$_SESSION['product4'] = 0;
if(!isset($_SESSION['product5']))
$_SESSION['product5'] = 0;
if(!isset($_SESSION['product6']))
$_SESSION['product6'] = 0;
if(!isset($_SESSION['product7']))
$_SESSION['product7'] = 0;
if(!isset($_SESSION['product8']))
$_SESSION['product8'] = 0;
// add product
if(mysql_escape_string($_GET['add']) != '') {
$addItem = mysql_escape_string($_GET['add']);
$_SESSION["product$addItem"] = $_SESSION["product$addItem"] + 1;
}
echo "product$addItem = ".$_SESSION["product$addItem"];
?>
Thanks! Hi I have this code and when I echo the count it shows 1 when theres actually 5. Have I wrote it wrong $loginsq = mysql_query("SELECT email FROM logindetails WHERE email = ".$_SESSION['MM_Username'].""); $logins = mysql_fetch_array($loginsq); $logs = count($logins); echo $logs; Suppose I have a series of numbers being stored in an SQL table, which are not uniform and constantly growing. Once the numbers in the table (in sql) hit 99,999,999, they start back at 1, and do it all over again continuously until the end of time.
If I am performing calculations in PHP on these numbers (stop date-start date), is there a function that can take a look at the next cell after 99,999,999 and acknowledge that the 1 is really 100,000,000.
In the below example, instead of using 99,999,999, we used 4 as the last number before numerical reset. Once the numbers hit 4, they reset to 1. continuously.
Example1. If I were to subtract Jan 1(start) from jan 4(stop) I would have Stopdate -Startdate = 4-1 =3.
Example2. If I were to subtract Jan 4(start) from jan 7(stop) I would have Stopdate-Startdate = 3-4 =-1 but should be 7-4 for the sake of the calculation only.
Example3. If I were to subtract Jan 8(start) from jan 11(stop), I would have Stopdate-Startdate = 3-4=-1 but should be 11-8=3 but for ease of not having to be a continuous repeating thing, can be represented at 7-4. There is no need to keep a running memory towards infinity. It just needs to know that any number after some number ending in 4 is 5, instead of reseting to 1.
jan 1 2014.......1
jan 2 2014.......2
jan 3 2014.......3
jan 4 2014.......4
jan 5 2014.......1
jan 6 2014.......2
jan 7 2014.......3
jan 8 2014.......4
jan 9 2014.......1
jan10 2014......2
jan11 2014......3
Hope this is not that confusing.
Long story short, I can't do a stopdate-startdate = somenumber, if that some number keeps resetting to 1 once it reached 99,999,999. As a result, my code will work perfectly until I reach 99,999,999, then I am in trouble because 1-99,999,999 is not equal to 1, where 100,000,000 -99,999,999 = 1
thanks.
Edited by Butterbean, 24 October 2014 - 02:24 PM. Hi there, I need a PHP number format to match one and all of these sequence of numbers: 8500.00 9999.99 15.00 0.00 hello, i am trying to see how i can pick a random number between 1-15 and exclude certain numbers. so i have a staff list that once a random number is created it inserts it into the staffnumber field. so the next time i create a random number for a staff, i want to make sure that the random number doesnt select an existing staffnumber. thanks! Hi all I am trying to print a pattern shown below: 1 23 456 7891011 1213141516 17181920 212223 2425 26 Any know how to do it? I'm a bit stuck, I completed it with asterix. <?php echo "How much money do you want landed on the account?!\n"; $landed = fgets(STDIN); $calc = ($landed * .25); $total = ($landed + $calc); echo "\nYou need to list the dummy for $".$total."...\n\n"; echo "Press enter to close this script..."; $exit = fgets(STDIN); ?> so say I enter 12000000000 which would make the $total .. $15000000000 how so I make the total have commas in it, like $15,000,000,000 One more question to ask. I'm trying to do a count of total logins that have happened in the last 5 months including the current one so far. My users_logins table has the following structu users_id, session_id, login_date(datetime), last_activity(datetime). What the end result is going to be is: <tr> <td></td> <th scope="col"><?php echo date("M", strtotime("-4 month")); ?></th> <th scope="col"><?php echo date("M", strtotime("-3 month")); ?></th> <th scope="col"><?php echo date("M", strtotime("-2 month")); ?></th> <th scope="col"><?php echo date("M", strtotime("-1 month")); ?></th> <th scope="col"><?php echo date("M"); ?></th> </tr> <tr> <th scope="row">Logins</th> <td>94</td> <td>53</td> <td>124</td> <td>92</td> <td>105</td> </tr> Where the first td would be May and the last td would be September. Do I have to do this in 4 separate queries. If so here's what I have for the first query. I'm not sure what woudl go for the WHERE. $four_months_ago_query = "SELCT COUNT(date_login) FROM users_logins WHERE ? "; |
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