How to use unlink to delete a folder in php

How to use unlink to delete a folder in php: 1. Create a php sample file; 2. Pass "if ($handle = opendir( "$dirName" ) ) {while (false !== ($ item = readdir($handle))){if($item...}" statement can be used to delete the folder.

The operating environment of this article: windows10 System, php 7, thinkpad t480 computer.

Deleting files in PHP is actually a very simple thing, because PHP has prepared appropriate functions for us, the unlink and rmdir functions. By using these two The function can also complete recursive deletion operations.

Let’s take a look at the specific implementation code!

The implementation code is as follows:

class shanchu { 
//循环目录下的所有文件 
function delFileUnderDir( $dirName=”../Smarty/templates/templates_c” ) 
{ 
if ( $handle = opendir( “$dirName” ) ) { 
while ( false !== ( $item = readdir( $handle ) ) ) { 
if ( $item != “.” && $item != “..” ) { 
if ( is_dir( “$dirName/$item” ) ) { 
delFileUnderDir( “$dirName/$item” ); 
} else {//开源代码phpfensi.com 
if( unlink( “$dirName/$item” ) )echo “成功删除文件： $dirName/$item<br />n”; 
} 
} 
} 
closedir( $handle ); 
} 
} 
}

Assume that a name needs to be deleted Call all files in the "upload" directory, but there is no need to delete the directory folder. You can do it with the following code:

<?php delFileUnderDir( ‘upload&#39;);?>

php deletes all directories, the code is as follows:

function deltree($pathdir) 
{ 
echo $pathdir;//调试时用的 
if(is_empty_dir($pathdir))//如果是空的 
{ 
rmdir($pathdir);//直接删除 
} 
else 
{//否则读这个目录，除了.和..外 
$d=dir($pathdir); 
while($a=$d->read()) 
{ 
if(is_file($pathdir.'/'.$a) && ($a!='.') && ($a!='..')){unlink($pathdir.'/'.$a);} 
//如果是文件就直接删除 
if(is_dir($pathdir.'/'.$a) && ($a!='.') && ($a!='..')) 
{//如果是目录 
if(!is_empty_dir($pathdir.'/'.$a))//是否为空 
{//如果不是，调用自身，不过是原来的路径+他下级的目录名 
deltree($pathdir.'/'.$a); 
} 
if(is_empty_dir($pathdir.'/'.$a)) 
{//如果是空就直接删除 
rmdir($pathdir.'/'.$a); 
} 
} 
} 
$d->close(); 
echo "必须先删除目录下的所有文件";//我调试时用的 
} 
} 
function is_empty_dir($pathdir) 
{ 
//判断目录是否为空 
$d=opendir($pathdir); 
$i=0; 
while($a=readdir($d)) 
{ 
$i++; 
} 
closedir($d); 
if($i>2){return false;} 
else return true; 
}

PHP deletes the directory and All files in the directory, the code is as follows:

<?php 
//循环删除目录和文件函数 
function delDirAndFile( $dirName ) 
{ 
if ( $handle = opendir( “$dirName” ) ) { 
while ( false !== ( $item = readdir( $handle ) ) ) { 
if ( $item != “.” && $item != “..” ) { 
if ( is_dir( “$dirName/$item” ) ) { 
delDirAndFile( “$dirName/$item” ); 
} else { 
if( unlink( “$dirName/$item” ) )echo “成功删除文件： $dirName/$item<br />n”; 
} 
} 
} 
closedir( $handle ); 
if( rmdir( $dirName ) )echo “成功删除目录： $dirName<br />n”; 
} 
} 
//假设需要删除一个名叫”upload”的同级目录即此目录下的所有文件，你可以通过以下代码完成： 
delDirAndFile( ‘upload&#39;); 
?>

Recommended learning: php training

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