PHP脚本无法正常工作GD库已安装 [英] PHP script not working GD Library installed
问题描述
下面是我的resize.php脚本.我需要安装GD Library,但这样做仍然很麻烦,无法像以前的旧服务器一样处理图像.
Below is my resize.php script. I needed to install the GD Library and did so but I am still having trouble gettint the image to process like it used to my old server.HERE You can see with the error reporting on there is an empty image created and the following errors display:
Warning: getimagesize(http://stackoverflow.com/questions/19817599/../wp-content/themes/Explorable/panos/Pano__0000.jpg): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /home/go3de/public_html/wp-content/themes/Explorable/resize.php on line 16
Warning: getimagesize(http://stackoverflow.com/questions/19817599/../wp-content/themes/Explorable/panos/Pano__0000.jpg): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /home/go3de/public_html/wp-content/themes/Explorable/resize.php on line 16
Warning: Division by zero in
/home/go3de/public_html/wp-content/themes/Explorable/resize.php on
line 19
Warning: Division by zero in
/home/go3de/public_html/wp-content/themes/Explorable/resize.php on
line 19
Warning: Division by zero in
/home/go3de/public_html/wp-content/themes/Explorable/resize.php on
line 30
Warning: Division by zero in
/home/go3de/public_html/wp-content/themes/Explorable/resize.php on
line 30
出了什么问题?请帮助!
What is going wrong? PLEASE HELP!
<?php session_start();header("Pragma: public");header("Cache-Control: max-age = 604800");
header("Expires: ".gmdate("D, d M Y H:i:s", time() + 604800)." GMT");
function thumbnail($image, $width, $height) {
if($image[0] != "/") { // Decide where to look for the image if a full path is not given
if(!isset($_SERVER["HTTP_REFERER"])) { // Try to find image if accessed directly from this script in a browser
$image = $_SERVER["DOCUMENT_ROOT"].implode("/", (explode('/', $_SERVER["PHP_SELF"], -1)))."/".$image;
} else {
$image = implode("/", (explode('/', $_SERVER["HTTP_REFERER"], -1)))."/".$image;
}
} else {
$image = $_SERVER["DOCUMENT_ROOT"].$image;
}
$image_properties = getimagesize($image);
$image_width = $image_properties[0];
$image_height = $image_properties[1];
$image_ratio = $image_width / $image_height;
$type = $image_properties["mime"];
if(!$width && !$height) {
$width = $image_width;
$height = $image_height;
}
if(!$width) {
$width = round($height * $image_ratio);
}
if(!$height) {
$height = round($width / $image_ratio);
}
if($type == "image/jpeg") {
header('Content-type: image/jpeg');
$thumb = imagecreatefromjpeg($image);
} elseif($type == "image/png") {
header('Content-type: image/png');
$thumb = imagecreatefrompng($image);
} else {
return false;
}
$temp_image = imagecreatetruecolor($width, $height);
imagecopyresampled($temp_image, $thumb, 0, 0, 0, 0, $width, $height, $image_width, $image_height);
$thumbnail = imagecreatetruecolor($width, $height);
imagecopyresampled($thumbnail, $temp_image, 0, 0, 0, 0, $width, $height, $width, $height);
if($type == "image/jpeg") {
imagejpeg($thumbnail);
} else {
imagepng($thumbnail);
}
imagedestroy($temp_image);
imagedestroy($thumbnail);
}
if(isset($_GET["h"])) { $h = $_GET["h"]; } else { $h = 0; }
if(isset($_GET["w"])) { $w = $_GET["w"]; } else { $w = 0; }
thumbnail($_GET["img"], $w, $h);
?>
推荐答案
想通了!在最初的<?php
开头标记之前,我有一个空格,这引起了错误!啊!很抱歉成为菜鸟!
Figured it out! I had a space before the initial <?php
opening tag which caused the error! AH! sorry for being a noob!
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