PHP - Function That Returns Several Values, How To Oop Call It ?

can anyone see the problem here

i am running php 5.3 on my server and GD seems to be enabled. and my host said it was probably something to do with the captcha files or script.


<?php

session_start();
 
/*
 * File: CaptchaSecurityImages.php
 * Author: Simon Jarvis
 * Copyright: 2006 Simon Jarvis
 * Date: 03/08/06
 * Updated: 2007-08-12 by Jenny Ferenc (minor visual changes only)
 * Requirements: PHP 4/5 with GD and FreeType libraries
 * Link: http://www.white-hat-web-design.co.uk/articles/php-captcha.php
 * 
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU General Public License 
 * as published by the Free Software Foundation; either version 2 
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
 * GNU General Public License for more details: 
 * http://www.gnu.org/licenses/gpl.html
 *
 */
 
class CaptchaSecurityImages {
 
   var $font = 'VeraSe.ttf';
 
   function generateCode($characters) {
      /* list all possible characters, similar looking characters and vowels have been removed */
      $possible = '23456789bcdfghjkmnpqrstvwxyz';
      $code = '';
      $i = 0;
      while ($i < $characters) { 
         $code .= substr($possible, mt_rand(0, strlen($possible)-1), 1);
         $i++;
      }
      return $code;
   }
 
   function CaptchaSecurityImages($width=130, $height=40, $characters=6) {

      $code = $this->generateCode($characters);

      // font size will be 60% of the image height
      $font_size = $height * 0.6;
      $image = @imagecreate($width, $height) or die('Cannot initialize new GD image stream');

      // set the colours
      $background_color = imagecolorallocate($image, 255, 255, 255);
      $text_color = imagecolorallocate($image, 20, 40, 100);
      $noise_color = imagecolorallocate($image, 100, 120, 180);

      // generate random dots in background
      for( $i=0; $i<($width*$height)/3; $i++ ) {
         imagefilledellipse($image, mt_rand(0,$width), mt_rand(0,$height), 1, 1, $noise_color);
      }

      // generate random lines in background
      for( $i=0; $i<($width*$height)/150; $i++ ) {
         imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color);
      }

      // create textbox and add text
      $textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Error in imagettfbbox function');
      $x = ($width - $textbox[4])/2;
      $y = ($height - $textbox[5])/2;
      imagettftext($image, $font_size, 0, $x, $y, $text_color, $this->font , $code) or die('Error in imagettftext function');

      // output captcha image to browser
      header('Content-Type: image/jpeg');
      imagejpeg($image);
      imagedestroy($image);
      $_SESSION['security_code'] = $code;
   }
 
}
 

$captcha = new CaptchaSecurityImages();

?>


this seems to be the problem line he

Code: [Select]
$textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Error in imagettfbbox function');
[\code]

This topic has been moved to Other Libraries and Frameworks.

http://www.phpfreaks.com/forums/index.php?topic=319682.0

I can call the following function successfully as a single php program

  // Acknowledge and clear the orders
   function ack($client, $merchant, $id) {
         $docs = array('string' => $id);
         $params = array('merchant' => $merchant, 'documentIdentifierArray' => $docs);
         $result = $client->call('postDocumentDownloadAck', $params);
         return $result;
         }
with

   $result = ack($t, $merchant,'2779540483');

successful output

    [documentDownloadAckProcessingStatus] => _SUCCESSFUL_
    [documentID] => 2779540483

I'm trying to figure out how to call this function as an object from another program.

Trying the following gives error  ***Call to a member function call() on a non-object***

  function postDocumentDownloadAck($t, $merchant, $id) {
     $this->error = null;
     $docs = array('string' => $this->id);
     $params = array('merchant' => $this->merchant, 'documentIdentifierArray' => $docs);

 **  I've tried the following which does nothing
     $result = $this->soap->call('postDocumentDownloadAck', $params);

** I've tried the following   -  which gives error "Call to a member function call() on a non-object"
     $result = $this->t->soap->call('postDocumentDownloadAck', $params);

     if($this->soap->fault) {
        $this->error = $result;
        return false;
     }

     return $result;
  }


***

calling program snippet for above function
   $merchant= array( "merchant"=> $merchantid, "merchantName" => $merchantname, "email"=> $login, "password"=> $password);
   $t = new AmazonMerchantAPI($merchantid, $merchantname, $login, $password);
   $documentlist= $t->GetAllPendingDocumentInfo('_GET_ORDERS_DATA_');
   $docid = $documentlist['MerchantDocumentInfo'][$i]['documentID'];
   $docs = array('string' => $docid);
   $ackorders = $t->postDocumentDownloadAck($t, $merchant,$docs);

Any ideas of what I'm doing wrong are greatly appreciated.

Hi, the problem that I have goes like this. If i do a regular Select query and display it in a table everything is there but if i am filling a input box of a form to use for modifying the values it does not return the entire value:

Exemple with the same value
in a table = product_name : Amd Athlon X2
In input field : Amd

Here is my code
Code: [Select]
<?
$sql = "SELECT * FROM tbl_product WHERE product_code = '$_POST[productcode]'";
$result = mysql_query($sql);
if(!$result){
die("Error running $sql:" . mysql_error());
}
?>


<?
 while($row = mysql_fetch_array($result))
 {
echo "
<form action='functions/moditem.php' method='post'>
<input type='hidden' name='productid' value=". $row['product_id'] .">
Product code : <input type='text' name='productcode' value=". $row['product_code'] ." /><br />
Product Name : <input type='text' name='productname' value=". $row['product_name'] ." /><br />
Product Price: <input type='text' name='productprice' value=". $row['product_price'] ." /><br />
<input type='submit' value='Modify' />
</form>
";
}

How can I check if a function has returned false.. I know theirs the following way:

if (!checkdate($month, $day, $year)) {
//the function has returned false
}

But is their another way (beside using the ! operator) perhaps === FALSE (not sure if that'd work so asking)?