<?php

session_start();

$str = '';

$width = 300;

$height = 100;

$img = imagecreatetruecolor($width, $

putih = imagecolorallocate($img, 255, 255, 255);

$red = imagecolorallocate($img, 255, 0, 0);

imagefilledrectangle($img, 0, 0, $width, $height, setColor( $img));

function setColor($img)

{

return imagecolorallocate($img,getColor(),getColor(),getColor());

}

function getColor()

pulangkan mt_rand(0,255);

}

set fungsiNombor($a,$b)

{

kembalikan mt_rand($a,$b);

}

fungsi getCode(

return $string = join('',array_rand(array_flip(array_merge(julat(0,9),julat('a','z'),julat('A','Z'))),4));

}

$str = getCode();

untuk($i=0;$i<4;$i++)

{

$size = setNum(20,50);

$angle = setNum(-15,15);

$x = ($lebar/4)*$i+mt_rand(1,9);

$y = mt_rand(($height/2),$height);

$color = setColor( $img );

$fontfile = './fonts/MSYH.ttf';

$text = mb_substr($str,$i,1,'utf-8');

imagettftext($img, $size, $angle, $x, $y, $color, $fontfile, $text);

}

untuk($i=0;$i<1500;$i++)

{

imagesetpixel($img, mt_rand(0, $width), mt_rand(0, $height), setColor($img ));

}

untuk($i=0;$i<3;$i++)

{

imageline($img, mt_rand(0, $width), mt_rand(0,$height), mt_rand (0, $width), mt_rand(0,$height), setColor($img));

}

untuk($i=0;$i<3;$i++)

{

$cx = mt_rand(0, $lebar);

$cy = mt_rand(0, $height);

$width = mt_rand(0, $width/2);

$height = mt_rand(0, $height/2);

$start = mt_rand 0, 360);

$end = mt_rand(0, 360);

$color = setColor($img);

imagearc($img, $cx, $cy, $width, $height, $start, $end, $color);

}

$_SESSION['verifycode'] = $str;

header('content-type:image/jpeg');

imagejpeg( $img );

imagedestroy( $img );

>