4
我使用整齊的小php腳本來調整圖像大小，以適應300x300像素的方塊，同時保持縱橫比。我從here得到了腳本。使用php調整圖像尺寸
這裏是整個腳本：
<?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;
}
}
?>
，這裏是我如何使用它：
$image = new SimpleImage();
$image->load($_FILES['uploaded_image']['tmp_name']);
$image->resizeToWidth(300);
$image->resizeToHeight(300);
$image->save('./images/photo'.$id.'.jpg');
header("Location: people.php");
exit;
這裏是我的問題： 只調整大小的高度。所以，如果我給它一個1200x990（寬x高）的圖像，它會吐出一個 400x300（如果有意義的話），這不適合我的300x300方塊。
我也試過：
$image = new SimpleImage();
$image2 = new SimpleImage();
$image->load($_FILES['uploaded_image']['tmp_name']);
$image->resizeToWidth(300);
$image->save('temp.jpg');
$image2->load('temp.jpg');
$image2->resizeToHeight(300);
$image2->save('./images/photo'.$id.'.jpg');
unlink('temp.jpg');
header("Location: people.php");
exit;
對不起，我的代碼質量可怕，我想我最好包括萬一源在那裏我是從移動或關閉的地方。
在那裏的任何敬虔的程序員？
100％嚴峻，謝謝！ – JoeRocc 2012-02-07 00:55:57
非常歡迎。這有點難看 - 你可能想先考慮將文件移動到你的圖像目錄，這樣你可以稍微收拾一下代碼。 – 2012-02-07 09:39:11