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鸽子
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849天前<?php |
session_start(); |
Header("Content-type: image/gif"); |
|
class SecurityCode |
{ |
private $codes = ''; |
|
function __construct() |
{ |
$code = '0-1-2-3-4-5-6-7-8-9-A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z'; |
$codeArray = explode('-',$code); |
shuffle($codeArray); |
$this->codes = implode('',array_slice($codeArray,0,4)); |
} |
|
public function CreateImg() |
{ |
$_SESSION['check_pic'] = $this->codes; |
$img = imagecreate(70,25); |
imagecolorallocate($img,222,222,222); |
$testcolor1 = imagecolorallocate($img,255,0,0); |
$testcolor2 = imagecolorallocate($img,51,51,51); |
$testcolor3 = imagecolorallocate($img,0,0,255); |
$testcolor4 = imagecolorallocate($img,255,0,255); |
|
for ($i = 0; $i < 4; $i++) |
{ |
imagestring($img,rand(5,6),8 + $i * 15,rand(2,8),$this->codes[$i],rand(1,4)); |
} |
imagegif($img); |
} |
} |
|
$code = new SecurityCode(); |
$code->CreateImg(); |
|
$code = NULL; |
?> |
