PHP DirectoryIterator getPerms()用法及代碼示例

DirectoryIterator::getPerms()函數是PHP中的內置函數，用於獲取當前DirectoryIterator項的權限。

用法:

int DirectoryIterator::getPerms( void )

參數：該函數不接受任何參數。

返回值：此函數以十進製整數形式取消文件許可權。

以下示例程序旨在說明PHP中的DirectoryIterator::getPerms()函數：

示例1:

<?php 
  
// Create a directory Iterator 
$directory = new DirectoryIterator(dirname(__FILE__)); 
  
// Loop runs while directory is valid 
while ($directory->valid()) { 
  
    // If not a dot folder 
    if (!$directory->isDot()) { 
        $perms = substr(sprintf('%o', $directory->getPerms()), -4); 
  
        // Display the filename with permission 
        echo $directory->getFilename() . " " 
            . " | Permission: " . $perms . "<br>"; 
    } 
    $directory->next(); 
} 
  
?>

輸出：

applications.html | Permission: 0666
bitnami.css | Permission: 0666
dashboard | Permission: 0777
favicon.ico | Permission: 0666
geeks.PNG | Permission: 0666
gfg.php | Permission: 0666
img | Permission: 0777
index.php | Permission: 0666
webalizer | Permission: 0777
xampp | Permission: 0777

示例2:

<?php 
  
// Create a directory Iterator 
$directory = new DirectoryIterator(dirname(__FILE__)); 
  
// Loop runs for each element of directory 
foreach($directory as $dir) { 
      
    // If not a dot folder 
    if (!$dir->isDot()) { 
        $perms = substr(sprintf('%o', $dir->getPerms()), -4); 
  
        // Display the filename with permission 
        echo $dir->getFilename() . " " 
                . " | Permission: " . $perms . "<br>"; 
    } 
} 
  
?>

輸出：

applications.html | Permission: 0666
bitnami.css | Permission: 0666
dashboard | Permission: 0777
favicon.ico | Permission: 0666
geeks.PNG | Permission: 0666
gfg.php | Permission: 0666
img | Permission: 0777
index.php | Permission: 0666
webalizer | Permission: 0777
xampp | Permission: 0777

注意：此函數的輸出取決於服務器文件夾的內容。

參考： https://www.php.net/manual/en/directoryiterator.getperms.php

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