調整目錄

Question

<? 
/* 
* Class: SimpleImage, 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 
* 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; 
    } 
} 
// End of SimpleImage class 

/* Directory Listing 
Source : http://www.spoono.com/php/tutorials/tutorial.php?id=10 
*/ 

// Define the path as relative 
$path = "/home/content/51/6511651/html/SITE/img2"; 

// Using the opendir function 
$dir_handle = @opendir($path) or die("ERROR: Cannot open <b>$path</b>"); 

echo("Directory Listing of $path<br/>"); 

//running the while loop 
while ($file = readdir($dir_handle)) 
{ 
    if($file != "." && $file != "..") 
    { 
    $image = new SimpleImage(); 
    $image->load("/img2/new".$file); 
    $image->resize(86,86); 
    $image->save("img2/new/s".$file); 
    echo("&bull; $file <br>"); 
    } 
} 

//closing the directory 
closedir($dir_handle); 
?> 

爲什麼不將這個腳本做任何事情，所有圖像????我試圖把它從（http://www.webmastersucks.com/resizing-all-images-in-directory/）配置，它基本上什麼也不做，一旦我運行它。

有人嗎？

Answer 1

首先，該行後：

$path = "/home/content/51/6511651/html/SITE/img2"; 

添加這樣一條：

if (getcwd() != $path) chdir($path); 

...以確保你的工作目錄中，可以讓你使用你是相對路徑嘗試去。

然後，while循環的內容改成這樣：

if($file != "." && $file != "..") { 
    $image = new SimpleImage(); 
    $image->load($file); 
    $image->resize(86,86); 
    $image->save("s".$file); 
    echo("&bull; $file <br>"); 
}