PHP DirectoryIterator current()用法及代码示例

DirectoryIterator::current()函数是PHP中的内置函数，用于返回当前DirectoryIterator项。

用法:

DirectoryIterator DirectoryIterator::current( void )

参数：该函数不接受任何参数。

返回值：此函数返回当前的DirectoryIterator项。

以下示例程序旨在说明PHP中的DirectoryIterator::current()函数：

示例1:

<?php 
  
// Create a directory Iterator 
$directory = new DirectoryIterator(dirname(__FILE__)); 
  
// Loop runs while directory is valid 
while ($directory->valid()) { 
  
    // Check for directory element 
    if ($directory->isDir()) { 
  
        // Store the current element 
        $file = $directory->current(); 
  
        // Display the filename 
        echo $file->getFilename() . "<br>"; 
    } 
  
    // Move to the next element 
    $directory->next(); 
} 
?>

输出：

.
..
dashboard
img
webalizer
xampp

示例2:

<?php 
  
// Create a directory Iterator 
$directory = new DirectoryIterator(dirname(__FILE__)); 
  
// Loop runs for each element of directory 
foreach($directory as $dir) { 
      
    // Store the current element 
    $file = $directory->current(); 
      
    // Display the key and filename 
    echo $dir->key() . " => " .  
        $file->getFilename() . "<br>"; 
} 
?>

输出：

0 => .
1 => ..
2 => applications.html
3 => bitnami.css
4 => dashboard
5 => favicon.ico
6 => geeks.PNG
7 => gfg.php
8 => img
9 => index.php
10 => Sublime Text Build 3211 x64 Setup.exe
11 => webalizer
12 => xampp

注意：此函数的输出取决于服务器文件夹的内容。

参考： https://www.php.net/manual/en/directoryiterator.current.php

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注：本文由纯净天空筛选整理自jit_t大神的英文原创作品 PHP | DirectoryIterator current() Function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。