PHP unlink and rmdir delete directory and all files in the directory_PHP tutorial

Deleting files and directories in PHP is actually very simple, as long as there are two functions, one is unlink and the other is rmdir function. If we want to delete directories and files under directories, we need to use recursion.

Function code: Only delete files in the specified directory, not the directory folder.

while ( false !== ( $item = readdir( $handle ) ) ) {if ( $item != “.” && $item != “..” ) {

The code is as follows

代码如下

复制代码

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/$item” ); } else { if( unlink( “$dirName/$item” ) )echo “成功删除文件： $dirName/$item n”; } } } closedir( $handle ); } } } ?> 假设需要删除一个名叫”upload”目录下的所有文件（但无需删除目录文件夹），你可以通过以下代码完成： delFileUnderDir( ‘upload’); ?>

Copy code

代码如下

复制代码

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; }

class shanchu {

//Loop all files in the directory
function delFileUnderDir( $dirName=”../Smarty/templates/templates_c” )

{

代码如下

复制代码

//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 n”; } } } closedir( $handle ); if( rmdir( $dirName ) )echo “成功删除目录： $dirName 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’); ?>

if ( $handle = opendir( “$dirName” ) ) {

if ( is_dir( “$dirName/$item” ) ) {delFileUnderDir( “$dirName/$item” );} else {if( unlink( "$dirName/$item" ) )echo "File deleted successfully: $dirName/$item
n";}}}closedir( $handle );}}}?>Suppose you need to delete all files in a directory named "upload" (but do not need to delete the directory folder), you can do the following Code completion: delFileUnderDir( 'upload');?> php delete all directories

The code is as follows

Copy code

function deltree($pathdir) { echo $pathdir;//Used for debuggingif(is_empty_dir($pathdir))//If it is empty{ rmdir($pathdir);//Delete directly } else {//Otherwise read this directory, except . and ..$d=dir($pathdir ); while($a=$d->read()) { if(is_file($pathdir.'/'.$a) && ($a!='.') && ($a!='..')){unlink($pathdir.'/'.$a);} //If it is a file, delete it directlyif(is_dir($pathdir.'/ '.$a) && ($a!='.') && ($a!='..')) {//If it is a directoryif(!is_empty_dir($pathdir.'/' .$a))//Whether it is empty{//If not, call itself, which is just the original path + its subordinate directory namedeltree($pathdir.'/'.$a); } if(is_empty_dir($pathdir.'/'.$a)) {//If it is empty, delete it directly rmdir($pathdir.'/'.$a); } } } $d->close(); echo "All files in the directory must be deleted first";//What I use when debugging } } function is_empty_dir($pathdir) { //Determine whether the directory is empty $d=opendir($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/ /Loop to delete directories and files functionfunction 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 “File deleted successfully: $dirName/$item
n";}}}closedir( $handle );if( rmdir( $dirName ) )echo "Directory deleted successfully: $dirName
n" ;}}//Suppose you need to delete a sibling directory named "upload", that is, all the files in this directory. You can complete it with the following code: delDirAndFile( 'upload');?>

http://www.bkjia.com/PHPjc/444647.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/444647.htmlTechArticleDeleting files and directories in php is actually very simple, as long as there are two functions, one is unlink and the other is rmdir function. If you want to implement To delete a directory and files under the directory, we need to use recursion. ...

The code is as follows	Copy code