IamRegin.com

 
<?php
session_start();
 
$strlength = rand(4,7);
 
for($i=1;$i<=$strlength;$i++){
$textornumber = rand(1,3);
 
if($textornumber == 1){
$captchastr .= chr(rand(49,57));
}
if($textornumber == 2){
$captchastr .= chr(rand(65,78));
}
if($textornumber == 3){
$captchastr .= chr(rand(80,90));
}
 
}
 
$randcolR = rand(100,230);
$randcolG = rand(100,230);
$randcolB = rand(100,230);
 
//initialize image $captcha is handle dimensions 200,50
$captcha = imageCreate(200,50);
 
$backcolor = imageColorAllocate($captcha, $randcolR, $randcolG, $randcolB);
 
$txtcolor = imageColorAllocate($captcha, ($randcolR - 20), ($randcolG - 20), ($randcolB - 20));
 
for($i=1;$i<=$strlength;$i++){
 
$clockorcounter = rand(1,2);
 
if ($clockorcounter == 1){
$rotangle = rand(0,45);
}
if ($clockorcounter == 2){
$rotangle = rand(315,360);
}
 
//$i*25 spaces the characters 25 pixels apart
imagettftext($captcha,rand(14,20),$rotangle,($i*25),30,$txtcolor,"fonts/arial.ttf",substr($captchastr,($i-1),1));
}
 
for($i=1; $i<=4;$i++){
imageellipse($captcha,rand(1,200),rand(1,50),rand(50,100),rand(12,25),$txtcolor);
}
 
for($i=1; $i<=4;$i++){
imageellipse($captcha,rand(1,200),rand(1,50),rand(50,100),rand(12,25),$backcolor);
}
 
//Send the headers (at last possible time)
header('Content-type: image/png');
 
//Output the image as a PNG
imagePNG($captcha);
 
//Delete the image from memory
imageDestroy($captcha);
 
$_SESSION[captchastr] = $captchastr;
 
?>