【php开源代码栏目提醒】:以下是网学会员为您推荐的php开源代码-code.php,希望本篇文章对您学习有所帮助。
<?
PHP error_reporting(0);
session_start();
session_register('code');
$_SESSION['code'] = '';
$width = '58';//鍥剧墖瀹?
$height = '22';//鍥剧墖楂?
for ($i=0; $i<4; $i++) {
$tmptext=rand(0, 9);
$code .= $tmptext;
}
$_SESSION['code'] = $code;
$ss=fopen("1.txt","w+");
fwrite($ss, $code);
@header("Expires: -1");
@header("Cache-Control: no-store, private, post-check=0, pre-check=0, max-age=0", FALSE);
@header("Pragma: no-cache");
if(function_exists('imagecreate') && function_exists('imagecolorset') && function_exists('imagecopyresized') && function_exists('imagecolorallocate') && function_exists('imagesetpixel') && function_exists('imagechar') && function_exists('imagecreatefromgif') && function_exists('imagepng')) {
$im = imagecreate($width, $height);
$backgroundcolor = imagecolorallocate ($im, 255, 255, 255);
$numorder = array(1, 2, 3, 4);
shuffle($numorder);
$numorder = array_flip($numorder);
//print_r ($numorder);
for($i = 1; $i <= 4; $i++) {
$x = $numorder[$i] * 13 + mt_rand(0, 4) - 2;
$y = mt_rand(0, 3);
$text_color = imagecolorallocate($im, mt_rand(50, 255), mt_rand(50, 128), mt_rand(50, 255));
imagechar($im, 5, $x + 5, $y + 3, $code[$numorder[$i]], $text_color);
//echo $code[$numorder[$i]];
fwrite($ss, $code[$numorder[$i]]);
}
$linenums = mt_rand(10, 32);
for($i=0; $i <= $linenums; $i++) {
$linecolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
$linex = mt_rand(0, $width);
$liney = mt_rand(0, $height);
imageline($im, $linex, $liney, $linex + mt_rand(0, 4) - 2, $liney + mt_rand(0, 4) - 2, $linecolor);
}
for($i=0; $i <= 40; $i++) {
$pointcolor = imagecolorallocate($im, mt_rand(50, 255), mt_rand(50, 255), mt_rand(50, 255));
imagesetpixel($im, mt_rand(0, $width), mt_rand(0, $height), $pointcolor);
}
$bordercolor = imagecolorallocate($im , 150, 150, 150);
imagerectangle($im, 0, 0, $width-1, $height-1, $bordercolor);
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
}
?>