【发布时间】：2020-08-13 09:58:08
【问题描述】：
这是我的 PHP 代码（使用 Imagick），用于在显示图像之前对其进行压缩。
但是，每次我运行它，结果都是一样的：一个带有白色边框的黑色方块，都没有任何 php 错误。
你能解释一下问题出在哪里吗？
谢谢。
$id = $_GET['id'];
$compression = $_GET['compr'];
$backgroundImagick = new Imagick(realpath(PHOTO_PATH.$id.'.jpg'));
$imagick = new Imagick();
$imagick->setCompression(Imagick::COMPRESSION_JPEG);
$imagick->setCompressionQuality($compression);
$imagick->newPseudoImage(
$backgroundImagick->getImageWidth(),
$backgroundImagick->getImageHeight(),
'canvas:white'
);
$imagick->compositeImage(
$backgroundImagick,
Imagick::COMPOSITE_ATOP,
0,
0
);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
还有，结果截图：image
编辑：我的 htaccess 代码
## contrôle du cache navigateur - Expire headers
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 7200 seconds"
ExpiresByType image/jpg "access plus 1 week"
ExpiresByType image/jpeg "access plus 1 week"
ExpiresByType image/png "access plus 1 week"
ExpiresByType image/gif "access plus 1 week"
ExpiresByType image/svg+xml "access plus 1 week"
AddType image/x-icon .ico
ExpiresByType image/ico "access plus 1 week"
ExpiresByType image/icon "access plus 1 week"
ExpiresByType image/x-icon "access plus 1 week"
ExpiresByType text/css "access plus 1 week"
ExpiresByType text/javascript "access plus 1 week"
ExpiresByType text/html "access plus 7200 seconds"
ExpiresByType application/xhtml+xml "access plus 7200 seconds"
ExpiresByType application/javascript "access plus 1 week"
ExpiresByType application/x-javascript "access plus 1 week"
ExpiresByType application/x-shockwave-flash "access plus 1 week"
</IfModule>
ErrorDocument 404 /index.php?page=404
ErrorDocument 403 /index.php?page=403
Options -Indexes
RewriteEngine on
Options All -Indexes
# AJOUT SLASH FIN URL
RewriteCond %{REQUEST_URI} (/[^.]+)[^/]$
RewriteRule ^(.*)$ http://%{HTTP_HOST}%{REQUEST_URI}/ [R=307,L]
# STANDARD
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php?page=$1 [NC,L,QSA]
最后是 index.php 文件：
<?php
require('include.php');
if(isset($_GET['page'])){
$Page = strtolower($_GET['page']);
$Page = str_replace('/', '', $Page);
}
else{
$titre = SITENAME. ' | accueil';
$desc = 'Accueil de '.SITENAME;
$Page = 'index';
}
if(!empty($_POST) && isset($_POST['form'])){
$form = $_POST['form'];
if(is_file('php/doForm/'.$form.'.php')){
require('php/doForm/'.$form.'.php');
}
}
switch($Page){
case 'login' : $titre = SITENAME.' | Se connecter';
$desc = 'Se connecter à son compte | '.SITENAME;
break;
case 'register' : $titre = SITENAME.' | Création de compte';
$desc = 'Se créer un compte sur '.SITENAME;
break;
case 'collections' : $titre = SITENAME. ' | Collections';
$desc = 'Collections de photos | '.SITENAME;
break;
case 'administration' : $titre = SITENAME. ' | Administration';
$desc = 'Admin';
break;
case 'profil' : $titre = SITENAME. ' | Votre profil';
$desc = "Consulter et modifier vos informations de compte sur ".SITENAME;
break;
default : $titre = SITENAME;
$desc = SITENAME;
break;
}
?>
<html>
<style>
:root{
--background: <?= $Vars->GetVar('css_background') ?>;
--inv-background: <?= $Vars->GetVar('css_inv-background') ?>;
--color: <?= $Vars->GetVar('css_color') ?>;
--gris: <?= $Vars->GetVar('css_gris') ?>;
--color-fonce: <?= $Vars->GetVar('css_color-fonce') ?>;
--color-fonce1: <?= $Vars->GetVar('css_color-fonce1') ?>;
--color-fonce2: <?= $Vars->GetVar('css_color-fonce2') ?>;
--section-2: <?= $Vars->GetVar('css_section-2') ?>;
--cadre-photos: <?= $Vars->GetVar('css_cadre-photos') ?>;
--titres-section2: <?= $Vars->GetVar('css_titres-section2') ?>;
--utm: 'UTMNeutra';
--def-font: Verdana, Geneva, Tahoma, sans-serif;
}
</style>
<head>
<title> <?= $titre ?> </title>
<meta name='description' content="<?=$desc?>" />
<link rel="stylesheet" href="<?= URL.'css/style.css' ?>" />
<meta name='keywords' content="<?= KEYWORDS ?>" />
</head>
<body>
<div class='header'>
<?php include "pages/header.php"; ?>
</div>
<div class='content'>
<?php
switch($Page) {
case '404' : include('pages/404.html');
break;
case '403' : include('pages/404.html');
header("HTTP/1.0 403 Missing permissions", true, 403);
break;
case 'admini' : include "administration/index.php";
break;
default : if(@is_file("pages/{$Page}.php"))
include "pages/{$Page}.php";
else
$Page = 404;
include "pages/404.html";
include('pages/404.html');
break;
}
?>
</div>
<div class='footer'>
<?php include "pages/footer.php"; ?>
</div>
</body>
</html>
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