PHP - Not Going Past A Maximum Amount

Is there any way to prevent bots from getting past a math captcha? I have 2 numbers generated randomly (from 1 to 20) and they are displayed in an image with the following lines:

one going from the upper left corner to the lower right corner
one going from the upper right to the lower left
a vertical line in the middle of the image
and a horizontal line in the middle....

Now I keep getting bots posting on my comments page every few weeks...is there a more effective method I should try in order to stop this?

I have the answer stored in a session variable. I was going to try random numbers from (1 to 100).

I also have a php counter on my webpage that has a file that the number of hits is written to and it seems everytime the bots post get past my captcha, the number of hits in the file is overridden. (It will go from 538 views down to 10 views)....

Any ideas???

Im having a hard time even explaining this so a search was not fruitful.    I have an INT column in a mysql table.  i want to UPDATE it in increments of 10 but the value should never exceed 100.  what is an efficient way to do this?   ie.  if the current value in the field is 96, when it tried to update

field = field+10

, it should dynamically only be

field = field+4

so that we do not exceed the 100 mark.

Hi

I know that maximum size of one cookie is 4Kb.. That is kilobytes right? and not kilobit?

And a byte is 8 bits right?

So if I have "Hello" in my cookie thats 5 characters which means the cookie is 5 x 8 = 40 bit which is again 5 bytes (?). Does this mean that I can have a maximum of 4000 characters in my cookie? Or did I miss something here?

Thanks

ok here is my code:
it has a counter variable $i at the start which basically acts as a maximum cutoff for how much data can be output. i have this variable set at 5.

how can i make it so that it doesnt cut off the results (outputs the full 7 days worth of results if available), but ALWAYS outputs a minimum of 5 results?



$now = $now-(7*24*60*60); // Display 7 Days of Results
$query = mysql_query("SELECT * FROM table WHERE date >= '$now' ORDER BY max(date) desc");
$i = 0;
while ($row = mysql_fetch_assoc($query)) {
$cid = $row['cat_id'];
$title = $row['name'];
$seoname = cleanurl($title,0);

$img = 'images/'.$seoname.'.jpg';
if (!file_exists($img)) {
$img = '';
} else {
$img = 'images/'.$seoname.'.jpg';
}

if (!empty($img)) {
$i++;
}

if (!empty($img) && $i <= 5) { // Always show ATLEAST 5 results
echo '<img src="'.$img .'" style="width:528px;" alt="" />' . "\n";
}
}


Please help and look at my code..thanks.

Hi, I'm looking for a code to view the date of the past weekdays. Forexample, if it's thursday, I want it to view the dates for wednesday, tuesday, monday, Friday before.

Thank you in advance.

hi

Lets say a member has 4500 points and I have this code:

Code: [Select]
UPDATE points SET members_point=(members_point+1000).......
but will not allow it to go above 5000

how should this be written?

I got 30 files to convert to png each in a dir containing 5 files
I get the maximum execution time when i run the following code:
Code: [Select]

$dir = glob("images/*/*.png");

foreach($dir as $file)
{
$filename  = $file;
$files = getimagesize($filename);
$img = imagecreatefrompng($filename);
imagepng($img,$filename);
}

I have a simple script that imports all images in a folder to my site and generates thumbnails. It works, but on folders with a rather large amount of images (500+) it can reach the max execution time and give a fatal error.

I could always break up my import folders into smaller chunks or increase the max execution time, but I am wondering if there is a different approach I could take.

Is there a way to reset the execution time of a script by inserting some kind of a pause/delay?

My query is a fixtures list for my local sports team- There seems little point including fixtures from the past as they are in a results query anyway.
I'm ordering by date (see below) but how can I remove the ones already past?

$query = "SELECT * FROM fix10 ORDER BY Date";

TIA Nick

Hi,

I am having issues getting a simple contact form getting past the junk filter and into the inbox. Is there something wrong with my code?

I have tried to set the email to 'not junk' in the 2 different email providers, but not change.


Here is my code:

Code: [Select]
<?php
    $name = $_POST['name'];
    $email = $_POST['email'];
    $message = $_POST['message'];
    $from = 'From: Contact Form'; 
    $to = 'my_email@gmail.com'; 
    $subject = 'Hello';
    $human = $_POST['human'];

    $body = "From: $name\n E-Mail: $email\n Message:\n $message";

  $headers .= "Content-type: text/plain; charset=utf-8\n";
  $headers .= "From: website user<someone_from@mysite.com> \n";


if ($_POST['submit']) {
    if ($name != '' && $email != '') {
        if ($human == '10') {  
            if (mail ($to, $subject, $body, $from)) { 
        echo '<p>Your message has been sent!</p>';
    } else { 
        echo '<p>Something went wrong, go back and try again!</p>'; 
    } 
} else if ($_POST['submit'] && $human != '4') {
    echo '<p>You answered the anti-spam question incorrectly!</p>';
}
    } else {
        echo '<p>You need to fill in all required fields!!</p>';
    }
}

?>



Code: [Select]
    <form method="post" action="mail_.php">
       
            <label>Name</label>
            <input name="name" placeholder="Type Here">
           
            <label>Email</label>

            <input name="email" type="email" placeholder="Type Here">
           
            <label>Message</label>
            <textarea name="message" placeholder="Type Here"></textarea>
           
            <label>*What is 7+3? (Anti-spam)</label>
            <input name="human" placeholder="Type Here">
           
            <input id="submit" name="submit" type="submit" value="Submit">
       
        </form>

Any help is greatly appreciated.

First the problem is not so much php relate, as i actually doing it in C# however regular expression are same on all of them and i dont know any c# forums as good and active as phpfreaks so I've decided to post it here.


My text is:
Code: [Select]
<div class="15ma">text-special character - numbers </div><div class="15ma">text-special character - numbers </div><div class="15ma">text-special character - numbers </div><div class="15ma">text-special character - numbers </div><div class="15ma">text-special character - numbers </div>
No spaces between the dives or new lines.

I thought of using this pattern:
Code: [Select]
<div class="15ma">(.+)<\/div>

However kept looking at it and it just grabs the first <div class="15ma"> and the last </div> since i used (.+) it consider all the other as part of the inside text..

Any help would be highly appreciated.

Thanks in advanced.

I want to set a never expire date, so I figured I would set the date 99 years into the future.  No dice.  After trial and error, it appears you can only make it 25 years into futu

date("Y-m-d",strtotime("+25 years"));

I wonder if it is the absolute date, or the number 25.  If it is the maximum date (i.e. nothing after 2035) then I will have a problem with this code next year!

Please help me out .....

ERROR: Maximum execution time of 30 seconds exceeded

error occured in the function CRM/sys1.7.2/database/DB_active_rec.php

line num :180 i.e  $this->$item = $default_value;


function _reset_run($ar_reset_items)
        {
                foreach ($ar_reset_items as $item => $default_value)
                {
                        if ( ! in_array($item, $this->ar_store_array))
                        {
                                $this->$item = $default_value;
                        }
                }
        }

Hi,
I have a Flash contact form that sends its name, e-mail, and message variables to a PHP script. The script works fine if the message is under ~700 characters, but anything more and the script won't post the message at all. An e-mail with just the name and e-mail address will come through to my inbox (which is embarrassing as a potential client sent me a contact form e-mail about a development job  ).

Is there some way to check the maximum character length for a string variable? Or to set its length to something higher?

This is my php. Thank you!!
<?

$senderName   = $_POST['userName'];
$senderEmail     = $_POST['userEmail'];
$senderMessage = $_POST['userMsg'];
$senderName   = stripslashes($senderName);
$senderMessage   = stripslashes($senderMessage); 
$senderMessage = strip_tags($senderMessage, '<p><br>');
$to = "kevin@kevinburkeportfolio.com";
$from = "email@kevinburkeportfolio.com";
$subject = "E-mail from $senderName";

$message = "<p><font size='2.5' face='Helvetica Neue, Helvetica, Sans Serif'><b>FROM:</b> $senderName
<br><br>
<b>E-MAIL:</b> <a href='mailto:$senderEmail'>$senderEmail</a>
<br><br>
<b>MESSAGE:</b> $senderMessage</p>";

$headers = "From: $from\r\n";
$headers = "MIME-Version: 1.0\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$to = "$to";
    mail($to, $subject, $message, $headers);

$my_msg = "Thanks $senderName, your message has been sent.";
    print "return_msg=$my_msg"; 

exit();
?>

hello,

I am using a script which takes backup of my database and convert it into a zip file,

I am getting following error

Code: [Select]
Fatal error: Maximum execution time of 30 seconds exceeded in /home/USERNAME/public_html/functions.php on line 110

I know I read and search forum for solving this by editing PHP.INI file, but i Have no access to it

So is their any way that I can able to run the script but modifying it??

Its working fine on localhost

I have also attached the files

Code: [Select]
<?php

/**
* Class to dynamically create a zip file (archive)
*
* @author Rochak Chauhan
*/

class createZip  {  

    public $compressedData = array();
    public $centralDirectory = array(); // central directory   
    public $endOfCentralDirectory = "\x50\x4b\x05\x06\x00\x00\x00\x00"; //end of Central directory record
    public $oldOffset = 0;

    /**
     * Function to create the directory where the file(s) will be unzipped
     *
     * @param $directoryName string
     *
     */
    
    public function addDirectory($directoryName) {
        $directoryName = str_replace("\\", "/", $directoryName);  

        $feedArrayRow = "\x50\x4b\x03\x04";
        $feedArrayRow .= "\x0a\x00";    
        $feedArrayRow .= "\x00\x00";    
        $feedArrayRow .= "\x00\x00";    
        $feedArrayRow .= "\x00\x00\x00\x00";

        $feedArrayRow .= pack("V",0);
        $feedArrayRow .= pack("V",0);
        $feedArrayRow .= pack("V",0);
        $feedArrayRow .= pack("v", strlen($directoryName) );
        $feedArrayRow .= pack("v", 0 );
        $feedArrayRow .= $directoryName;  

        $feedArrayRow .= pack("V",0);
        $feedArrayRow .= pack("V",0);
        $feedArrayRow .= pack("V",0);

        $this -> compressedData[] = $feedArrayRow;
        
        $newOffset = strlen(implode("", $this->compressedData));

        $addCentralRecord = "\x50\x4b\x01\x02";
        $addCentralRecord .="\x00\x00";    
        $addCentralRecord .="\x0a\x00";    
        $addCentralRecord .="\x00\x00";    
        $addCentralRecord .="\x00\x00";    
        $addCentralRecord .="\x00\x00\x00\x00";
        $addCentralRecord .= pack("V",0);
        $addCentralRecord .= pack("V",0);
        $addCentralRecord .= pack("V",0);
        $addCentralRecord .= pack("v", strlen($directoryName) );
        $addCentralRecord .= pack("v", 0 );
        $addCentralRecord .= pack("v", 0 );
        $addCentralRecord .= pack("v", 0 );
        $addCentralRecord .= pack("v", 0 );
        $ext = "\x00\x00\x10\x00";
        $ext = "\xff\xff\xff\xff";  
        $addCentralRecord .= pack("V", 16 );

        $addCentralRecord .= pack("V", $this -> oldOffset );
        $this -> oldOffset = $newOffset;

        $addCentralRecord .= $directoryName;  

        $this -> centralDirectory[] = $addCentralRecord;  
    }    
    
    /**
     * Function to add file(s) to the specified directory in the archive
     *
     * @param $directoryName string
     *
     */
    
    public function addFile($data, $directoryName)   {

        $directoryName = str_replace("\\", "/", $directoryName);  
    
        $feedArrayRow = "\x50\x4b\x03\x04";
        $feedArrayRow .= "\x14\x00";    
        $feedArrayRow .= "\x00\x00";    
        $feedArrayRow .= "\x08\x00";    
        $feedArrayRow .= "\x00\x00\x00\x00";

        $uncompressedLength = strlen($data);  
        $compression = crc32($data);  
        $gzCompressedData = gzcompress($data);  
        $gzCompressedData = substr( substr($gzCompressedData, 0, strlen($gzCompressedData) - 4), 2);
        $compressedLength = strlen($gzCompressedData);  
        $feedArrayRow .= pack("V",$compression);
        $feedArrayRow .= pack("V",$compressedLength);
        $feedArrayRow .= pack("V",$uncompressedLength);
        $feedArrayRow .= pack("v", strlen($directoryName) );
        $feedArrayRow .= pack("v", 0 );
        $feedArrayRow .= $directoryName;  

        $feedArrayRow .= $gzCompressedData;  

        $feedArrayRow .= pack("V",$compression);
        $feedArrayRow .= pack("V",$compressedLength);
        $feedArrayRow .= pack("V",$uncompressedLength);

        $this -> compressedData[] = $feedArrayRow;

        $newOffset = strlen(implode("", $this->compressedData));

        $addCentralRecord = "\x50\x4b\x01\x02";
        $addCentralRecord .="\x00\x00";    
        $addCentralRecord .="\x14\x00";    
        $addCentralRecord .="\x00\x00";    
        $addCentralRecord .="\x08\x00";    
        $addCentralRecord .="\x00\x00\x00\x00";
        $addCentralRecord .= pack("V",$compression);
        $addCentralRecord .= pack("V",$compressedLength);
        $addCentralRecord .= pack("V",$uncompressedLength);
        $addCentralRecord .= pack("v", strlen($directoryName) );
        $addCentralRecord .= pack("v", 0 );
        $addCentralRecord .= pack("v", 0 );
        $addCentralRecord .= pack("v", 0 );
        $addCentralRecord .= pack("v", 0 );
        $addCentralRecord .= pack("V", 32 );

        $addCentralRecord .= pack("V", $this -> oldOffset );
        $this -> oldOffset = $newOffset;

        $addCentralRecord .= $directoryName;  

        $this -> centralDirectory[] = $addCentralRecord;  
    }

    /**
     * Fucntion to return the zip file
     *
     * @return zipfile (archive)
     */

    public function getZippedfile() {

        $data = implode("", $this -> compressedData);  
        $controlDirectory = implode("", $this -> centralDirectory);  

        return   
            $data.  
            $controlDirectory.  
            $this -> endOfCentralDirectory.  
            pack("v", sizeof($this -> centralDirectory)).     
            pack("v", sizeof($this -> centralDirectory)).     
            pack("V", strlen($controlDirectory)).             
            pack("V", strlen($data)).                
            "\x00\x00";                             
    }


}



/*
  MySQL database backup class, version 1.0.0
  Written by Vagharshak Tozalakyan <vagh@armdex.com>
  Released under GNU Public license
*/


define('MSB_VERSION', '1.0.0');

define('MSB_NL', "\r\n");

define('MSB_STRING', 0);
define('MSB_DOWNLOAD', 1);
define('MSB_SAVE', 2);

class MySQL_Backup
{

  var $server = 'localhost';
  var $port = 3306;
  var $username = 'root';
  var $password = '';
  var $database = '';
  var $link_id = -1;
  var $connected = false;
  var $tables = array();
  var $drop_tables = true;
  var $struct_only = false;
  var $comments = true;
  var $backup_dir = '';
  var $fname_format = 'd_m_y__H_i_s';
  var $error = '';


  function Execute($task = MSB_STRING, $fname = '', $compress = false)
  {
    if (!($sql = $this->_Retrieve()))
    {
      return false;
    }
    if ($task == MSB_SAVE)
    {
      if (empty($fname))
      {
        $fname = $this->backup_dir;
        $fname .= date($this->fname_format);
        $fname .= ($compress ? '.sql.gz' : '.sql');
      }
      return $this->_SaveToFile($fname, $sql, $compress);
    }
    elseif ($task == MSB_DOWNLOAD)
    {
      if (empty($fname))
      {
        $fname = date($this->fname_format);
        $fname .= ($compress ? '.sql.gz' : '.sql');
      }
      return $this->_DownloadFile($fname, $sql, $compress);
    }
    else
    {
      return $sql;
    }
  }


  function _Connect()
  {
    $value = false;
    if (!$this->connected)
    {
      $host = $this->server . ':' . $this->port;
      $this->link_id = mysql_connect($host, $this->username, $this->password);
    }
    if ($this->link_id)
    {
      if (empty($this->database))
      {
        $value = true;
      }
      elseif ($this->link_id !== -1)
      {
        $value = mysql_select_db($this->database, $this->link_id);
      }
      else
      {
        $value = mysql_select_db($this->database);
      }
    }
    if (!$value)
    {
      $this->error = mysql_error();
    }
    return $value;
  }


  function _Query($sql)
  {
    if ($this->link_id !== -1)
    {
      $result = mysql_query($sql, $this->link_id);
    }
    else
    {
      $result = mysql_query($sql);
    }
    if (!$result)
    {
      $this->error = mysql_error();
    }
    return $result;
  }


  function _GetTables()
  {
    $value = array();
    if (!($result = $this->_Query('SHOW TABLES')))
    {
      return false;
    }
    while ($row = mysql_fetch_row($result))
    {
      if (empty($this->tables) || in_array($row[0], $this->tables))
      {
        $value[] = $row[0];
      }
    }
    if (!sizeof($value))
    {
      $this->error = 'No tables found in database.';
      return false;
    }
    return $value;
  }


  function _DumpTable($table)
  {
    $value = '';
    $this->_Query('LOCK TABLES ' . $table . ' WRITE');
    if ($this->comments)
    {
      $value .= '#' . MSB_NL;
      $value .= '# Table structure for table `' . $table . '`' . MSB_NL;
      $value .= '#' . MSB_NL . MSB_NL;
    }
    if ($this->drop_tables)
    {
      $value .= 'DROP TABLE IF EXISTS `' . $table . '`;' . MSB_NL;
    }
    if (!($result = $this->_Query('SHOW CREATE TABLE ' . $table)))
    {
      return false;
    }
    $row = mysql_fetch_assoc($result);
    $value .= str_replace("\n", MSB_NL, $row['Create Table']) . ';';
    $value .= MSB_NL . MSB_NL;
    if (!$this->struct_only)
    {
      if ($this->comments)
      {
        $value .= '#' . MSB_NL;
        $value .= '# Dumping data for table `' . $table . '`' . MSB_NL;
        $value .= '#' . MSB_NL . MSB_NL;
      }
            
      $value .= $this->_GetInserts($table);
    }
    $value .= MSB_NL . MSB_NL;
    $this->_Query('UNLOCK TABLES');
    return $value;
  }


  function _GetInserts($table)
  {
    $value = '';
    if (!($result = $this->_Query('SELECT * FROM ' . $table)))
    {
      return false;
    }
    while ($row = mysql_fetch_row($result))
    {
      $values = '';
      foreach ($row as $data)
      {
        $values .= '\'' . addslashes($data) . '\', ';
      }
      $values = substr($values, 0, -2);
      $value .= 'INSERT INTO ' . $table . ' VALUES (' . $values . ');' . MSB_NL;
    }
    return $value;
  }


  function _Retrieve()
  {
    $value = '';
    if (!$this->_Connect())
    {
      return false;
    }
    if ($this->comments)
    {
      $value .= '#' . MSB_NL;
      $value .= '# MySQL database dump' . MSB_NL;
      $value .= '# Created by MySQL_Backup class, ver. ' . MSB_VERSION . MSB_NL;
      $value .= '#' . MSB_NL;
      $value .= '# Host: ' . $this->server . MSB_NL;
      $value .= '# Generated: ' . date('M j, Y') . ' at ' . date('H:i') . MSB_NL;
      $value .= '# MySQL version: ' . mysql_get_server_info() . MSB_NL;
      $value .= '# PHP version: ' . phpversion() . MSB_NL;
      if (!empty($this->database))
      {
        $value .= '#' . MSB_NL;
        $value .= '# Database: `' . $this->database . '`' . MSB_NL;
      }
      $value .= '#' . MSB_NL . MSB_NL . MSB_NL;
    }
    if (!($tables = $this->_GetTables()))
    {
      return false;
    }
    foreach ($tables as $table)
    {
      if (!($table_dump = $this->_DumpTable($table)))
      {
        $this->error = mysql_error();
        return false;
      }
      $value .= $table_dump;
    }
    return $value;
  }


  function _SaveToFile($fname, $sql, $compress)
  {
    if ($compress)
    {
      if (!($zf = gzopen($fname, 'w9')))
      {
        $this->error = 'Can\'t create the output file.';
        return false;
      }
      gzwrite($zf, $sql);
      gzclose($zf);
    }
    else
    {
      if (!($f = fopen($fname, 'w')))
      {
        $this->error = 'Can\'t create the output file.';
        return false;
      }
      fwrite($f, $sql);
      fclose($f);
    }
    return true;
  }

} 

function mailAttachment($file, $mailto, $from_mail, $from_name, $replyto, $subject, $message) {

    $filename = basename($file);
    $file_size = filesize($file);
    $handle = fopen($file, "r");
    $content = fread($handle, $file_size);
    fclose($handle);
    $content = chunk_split(base64_encode($content));
    $uid = md5(uniqid(time()));
    $name = basename($file);
    $header = "From: ".$from_name." <".$from_mail.">\r\n";
    $header .= "Reply-To: ".$replyto."\r\n";
    $header .= "MIME-Version: 1.0\r\n";
    $header .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n";
    $header .= "This is a multi-part message in MIME format.\r\n";
    $header .= "--".$uid."\r\n";
    $header .= "Content-type:text/plain; charset=iso-8859-1\r\n";
    $header .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
    $header .= $message."\r\n\r\n";
    $header .= "--".$uid."\r\n";
    $header .= "Content-Type: application/octet-stream; name=\"".$filename."\"\r\n"; // use diff. tyoes here
    $header .= "Content-Transfer-Encoding: base64\r\n";
    $header .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";
    $header .= $content."\r\n\r\n";
    $header .= "--".$uid."--";
    if (mail($mailto, $subject, "", $header)) {
        echo "mail send ... OK"; // or use booleans here
    } else {
        echo "mail send ... ERROR!";
    }
} 




function directoryToArray($directory, $recursive) {
    $array_items = array();
    if ($handle = opendir($directory)) {
        while (false !== ($file = readdir($handle))) {
            if ($file != "." && $file != "..") {
                if (is_dir($directory. "/" . $file)) {
                    if($recursive) {
                        $array_items = array_merge($array_items, directoryToArray($directory. "/" . $file, $recursive));
                    }
                    $file = $directory . "/" . $file ."/";
                    $array_items[] = preg_replace("/\/\//si", "/", $file);
                } else {
                    $file = $directory . "/" . $file;
                    $array_items[] = preg_replace("/\/\//si", "/", $file);
                }
            }
        }
        closedir($handle);
    }
    return $array_items;
}

function pr($val)
{
    echo '<pre>';
    print_r($val);
    echo '</pre>';
}
  
?>