php gets network pictures to display in the browser

Get Image From Web



URL：

2、文件 getimage.php

// set up variable
$url = $_REQUEST['url'];
// echo " 8 ".$url."";
$ext = substr($url, strrpos($url, '.')+1);
// echo ' 9 '.$ext.'';
$filename = substr($url, strrpos($url, '/')+1, -(strlen($ext) + 1));
// echo ' 10 '.$filename.'';
if ($ext == 'jpg') {
$im = imagecreatefromjpeg($url);
if ($im) {
//      echo 'created image handle';
$width = imagesx($im);
$height = imagesy($im);
$x = $width/2;
$y = $height/2;
$dst = imagecreatetruecolor($x, $y);
imagecopyresampled($dst, $im, 0, 0, 0, 0, $x, $y, $width, $height);
header("Content-Type:image/jpeg");
//      imagejpeg($dst, 'imgdst.jpg');
imagejpeg($dst);
imagedestroy($dst);
imagedestroy($im);
//      echo '';
}
}
?>

说明： 将收到的url中的网页转换为图片，缩放后再显示到浏览器。