我正在尝试调整上传到我的 php 表单上的图像的大小。图片正在保存，但未调整大小。基本上，除了调整图像部分的大小外，一切正常。我把我的代码放在下面。
用 php 调整大小的 html 表单
<?php include "base.php"; ?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Submit an Album</title>
</head>
<body>
<?php
if( isset($_POST['submit']) ) {
include('SimpleImage.php');
$image = new SimpleImage();
$image->load($_FILES['albumCover']['tmp_name']);
$image->resize(150,150);
$image->output();
} else {
?>
<table>
<tr>
<td align="center">Submit an Album</td>
</tr>
<tr>
<td>
<table>
<form enctype="multipart/form-data" action="submitAlbumForm.php" method="post">
<tr>
<td>Artist Name</td>
<td><input type="text" name="artistName" size="20">
</td>
</tr>
<tr>
<td>Album Name</td>
<td><input type="text" name="albumName" size="20">
</td>
</tr>
<tr>
<tr>
<td>Release Date</td>
<td><input type="text" name="releaseDate" size="20">
</td>
</tr>
<tr>
<tr>
<td>Leak Date</td>
<td><input type="text" name="leakDate" size="20">
</td>
</tr>
<tr>
<tr>
<td>Where It Leaked</td>
<td><input type="text" name="whereItLeaked" size="20">
</td>
</tr>
<tr>
<tr>
<td>Album Cover</td>
<td><input type="file" name="albumCover">
</td>
</tr>
<tr>
<td></td>
<td align="right"><input type="submit" name="submit" value="Add"></td>
</tr>
</form>
</table>
</td>
</tr>
</table>
<?php
}
?>
</body>
</html>
submitAlbumForm.php，用于将表单信息上传到数据库的 php 表单
<?php
include "base.php";
//Setting up images directory
$target = "images/";
$target = $target . basename( $_FILES['albumCover']['name']);
$albumCover=($_FILES['albumCover']['name']);
//inserting data order
$order = "INSERT INTO albums
(artistName, albumName, releaseDate, leakDate, whereItLeaked, albumCover)
VALUES
('$_POST[artistName]',
'$_POST[albumName]',
'$_POST[releaseDate]',
'$_POST[leakDate]',
'$_POST[whereItLeaked]',
'{$_FILES['albumCover']['name']}')";
//Writes image to database
mysql_query("INSERT INTO `albums` VALUES ('albumCover')") ;
if(move_uploaded_file($_FILES['albumCover']['tmp_name'], $target))
{
//Tells you if its all ok
echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded, and your information has been added to the directory";
}
else {
//Gives an error if its not
echo "Sorry, there was a problem uploading your file.";
}
//declare in the order variable
$result = mysql_query($order); //order executes
if($result){
echo("<br>Thank you for submitting!");
} else{
echo("<br>Sorry, something went wrong! Please try again!");
}
?>
SimpleImage.php，我用来调整图像大小的脚本-
<?php
/*
* File: SimpleImage.php
* Author: Simon Jarvis
* Copyright: 2006 Simon Jarvis
* Date: 08/11/06
* Link: http://www.white-hat-web-design.co.uk/articles/php-image-resizing.php
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details:
* http://www.gnu.org/licenses/gpl.html
*
*/
class SimpleImage {
var $image;
var $image_type;
function load($filename) {
$image_info = getimagesize($filename);
$this->image_type = $image_info[2];
if( $this->image_type == IMAGETYPE_JPEG ) {
$this->image = imagecreatefromjpeg($filename);
} elseif( $this->image_type == IMAGETYPE_GIF ) {
$this->image = imagecreatefromgif($filename);
} elseif( $this->image_type == IMAGETYPE_PNG ) {
$this->image = imagecreatefrompng($filename);
}
}
function save($filename, $image_type=IMAGETYPE_JPEG, $compression=75, $permissions=null) {
if( $image_type == IMAGETYPE_JPEG ) {
imagejpeg($this->image,$filename,$compression);
} elseif( $image_type == IMAGETYPE_GIF ) {
imagegif($this->image,$filename);
} elseif( $image_type == IMAGETYPE_PNG ) {
imagepng($this->image,$filename);
}
if( $permissions != null) {
chmod($filename,$permissions);
}
}
function output($image_type=IMAGETYPE_JPEG) {
if( $image_type == IMAGETYPE_JPEG ) {
imagejpeg($this->image);
} elseif( $image_type == IMAGETYPE_GIF ) {
imagegif($this->image);
} elseif( $image_type == IMAGETYPE_PNG ) {
imagepng($this->image);
}
}
function getWidth() {
return imagesx($this->image);
}
function getHeight() {
return imagesy($this->image);
}
function resizeToHeight($height) {
$ratio = $height / $this->getHeight();
$width = $this->getWidth() * $ratio;
$this->resize($width,$height);
}
function resizeToWidth($width) {
$ratio = $width / $this->getWidth();
$height = $this->getheight() * $ratio;
$this->resize($width,$height);
}
function scale($scale) {
$width = $this->getWidth() * $scale/100;
$height = $this->getheight() * $scale/100;
$this->resize($width,$height);
}
function resize($width,$height) {
$new_image = imagecreatetruecolor($width, $height);
imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
$this->image = $new_image;
}
}
?>
我知道我现在有很多安全漏洞，很快就会解决这些漏洞！多谢你们！