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<blockquote data-quote="Markshall" data-source="post: 51618" data-attributes="member: 1872">Earlier on today I create a video-tutorial on how to create your very own captcha image &amp; form, and this is the result:[media=&quot;YOUTUBE&quot;]fDolfH3gY10[/media]If you can't be bothered watching the video and just want the code:index.php[php]&lt;?phpsession_start();if ( isset( $_POST['submit'] ) ){$code = strip_tags( $_POST['code'] );$real_code = $_SESSION['captcha_code'];if ( $code !== $real_code ){echo &quot;Wrong code! Code was {$real_code}&quot;;}else{echo &quot;Correct code!&quot;;}}else{?&gt;&lt;form method=&quot;post&quot;&gt;&lt;img src=&quot;captcha.php&quot; /&gt;&lt;br /&gt;Enter code: &lt;input type=&quot;text&quot; name=&quot;code&quot; /&gt; &lt;input type=&quot;submit&quot; name=&quot;submit&quot; value=&quot;Go&quot; /&gt;&lt;/form&gt;&lt;?php}?&gt;[/php]captcha.php[php]&lt;?php/* This tutorial will teach you how to create your own Captcha image. */session_start();$chars = &quot;1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM&quot;;$length = ( isset( $_GET['l'] ) &amp;&amp; is_numeric( $_GET['l'] ) ) ? (int)$_GET['l'] : 8;$captcha = &quot;&quot;;for ( $i = 1; $i &lt;= $length; $i++ ){$captcha .= $chars[ mt_rand( 0, strlen( $chars ) ) ];}$_SESSION['captcha_code'] = $captcha;$width = ( $length * 10 ) - 3;$img = imagecreate( $width, 17 );$bg = imagecolorallocate( $img, 0, 0, 0 ); //black$txt = imagecolorallocate( $img, 255, 255, 255 ); //whiteimagestring( $img, 5, 3, 1, $captcha, $txt );header( &quot;Content-Type: image/PNG&quot; );imagepng( $img );imagedestroy( $img );?&gt;[/php]</blockquote>

[QUOTE="Markshall, post: 51618, member: 1872"] Earlier on today I create a video-tutorial on how to create your very own captcha image & form, and this is the result: [media="YOUTUBE"]fDolfH3gY10[/media] If you can't be bothered watching the video and just want the code: [b]index.php[/b] [php]<?php session_start(); if ( isset( $_POST['submit'] ) ) { $code = strip_tags( $_POST['code'] ); $real_code = $_SESSION['captcha_code']; if ( $code !== $real_code ) { echo "Wrong code! Code was {$real_code}"; } else { echo "Correct code!"; } } else { ?> <form method="post"> <img src="captcha.php" /> Enter code: <input type="text" name="code" /> <input type="submit" name="submit" value="Go" /> </form> <?php } ?>[/php] [b]captcha.php[/b] [php]<?php /* This tutorial will teach you how to create your own Captcha image. */ session_start(); $chars = "1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM"; $length = ( isset( $_GET['l'] ) && is_numeric( $_GET['l'] ) ) ? (int)$_GET['l'] : 8; $captcha = ""; for ( $i = 1; $i <= $length; $i++ ) { $captcha .= $chars[ mt_rand( 0, strlen( $chars ) ) ]; } $_SESSION['captcha_code'] = $captcha; $width = ( $length * 10 ) - 3; $img = imagecreate( $width, 17 ); $bg = imagecolorallocate( $img, 0, 0, 0 ); //black $txt = imagecolorallocate( $img, 255, 255, 255 ); //white imagestring( $img, 5, 3, 1, $captcha, $txt ); header( "Content-Type: image/PNG" ); imagepng( $img ); imagedestroy( $img ); ?>[/php] [/QUOTE]

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