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<?php
();
?>
<form name="form1" method="post" action="form.php">
<?php
if(isset( $_REQUEST [ 'Submit' ])){
$key = substr ( $_SESSION [ 'key' ], 0 , 5 );
$number = $_REQUEST [ 'number' ];
$number != $key ){
' Validation string not valid! Please try again!' ;}
' Thank You for the verification!' ;}
?>
</div>
<?php
();
$md5 = md5 ( microtime () * mktime ());
$string = substr ( $md5 , 0 , 5 );
//echo $string;
$image = imagecreatefromjpeg ( "images/box5" );
$black = imagecolorallocate ( $image , 0 , 0 , 0 );
$line = imagecolorallocate ( $image , 233 , 239 , 239 );
$line2 = imagecolorallocate ( $image , 153 , 165 , 123 );
imageline ( $image , 10 , 1 , 30 , 25 , $line2 );
imageline ( $image , 1 , 60 , 40 , 10 , $line2 );
imageline ( $image , 5 , 8 , 20 , 20 , $line2 );
imageline ( $image , 6 , 40 , 20 , 15 , $line2 );
$i = 0 ; $i <= 256 ; $i ++) {
$point_color = imagecolorallocate ( $image , rand ( 0 , 255 ), rand ( 0 , 255 ), rand ( 0 , 255 ));
imagesetpixel ( $image , rand ( 6 , 128 ), rand ( 2 , 38 ), $point_color );
$str_array =array();
$len = strlen ( $string );
$i = 0 ; $i < $len ; $i ++) $str_array []= $string { $i };
imagestring ( $image , 5 , rand ( 2 , 10 ), rand ( 2 , 11 ), $str_array [ 0 ], $black ); // Draw a random string horizontally
imagestring ( $image , 5 , rand ( 18 , 25 ), rand ( 2 , 11 ), $str_array [ 1 ], $black ); // Draw a random string horizontally
imagestring ( $image , 5 , rand ( 33 , 40 ), rand ( 2 , 11 ), $str_array [ 2 ], $black ); // Draw a random string horizontally
imagestring ( $image , 5 , rand ( 47 , 55 ), rand ( 2 , 11 ), $str_array [ 3 ], $black ); // Draw a random string horizontally
imagestring ( $image , 5 , rand ( 61 , 68 ), rand ( 2 , 11 ), $str_array [ 4 ], $black ); // Draw a random string horizontally
$_SESSION [ 'key' ] = $string ;
header ( "Content-type: image/jpeg" );
imagejpeg ( $image );
?>
A captcha image allows you to prevent spam posting when users reload the page and stop bots from submitting forms automatically. This version allows you to use your own fonts (.ttf) to show the text.
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Bruce Borner wrote : 1690
img src="http://192.168.0.6/workbench/lekha/test/captcha.php"></
Bruce Borner wrote : 1691
="http://192.168.0.6/workbench/lekha/test/captcha.php"></
