1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
<?php
$image_width
= 100;
$image_height
= 100;
$image_str
= ‘‘ ;
if
(isset( $_GET [ ‘w‘ ]))
{
$image_width
= intval ( $_GET [ ‘w‘ ]);
}
if
(isset( $_GET [ ‘h‘ ]))
{
$image_height
= intval ( $_GET [ ‘h‘ ]);
}
if
(isset( $_GET [ ‘s‘ ]))
{
$image_str
= $_GET [ ‘s‘ ];
}
$img
= imagecreate( $image_width , $image_height );
$color
= imagecolorallocate( $img , mt_rand(157,255), mt_rand(157,255), mt_rand(157,255));
imagefilledrectangle( $img , 0, $image_height , $image_width , 0, $color );
$step
= mt_rand(15, 30);
$start
= mt_rand(0, $step );
$color
= imagecolorallocate( $img , mt_rand(200,255), mt_rand(200,255), mt_rand(200,255));
imagesetthickness( $img , mt_rand(3, 10));
if
( $image_height
> $image_width )
{
for
( $i = $start ; $i < $image_height
* 2; $i += $step )
{
imageline( $img , 0, $i , $i , 0, $color );
}
}
else
{
for
( $i = $start ; $i < $image_width
* 2; $i += $step )
{
imageline( $img , $i , 0, 0, $i , $color );
}
}
if
( $image_str
!= ‘‘ )
{
$black
= imagecolorallocate( $img , 0, 0, 0);
imagestring( $img , 12, 5, 5, $image_str , $black );
}
header( ‘Content-type:image/png‘ );
imagepng( $img );
imagedestroy( $img );
|