php periodically deletes files under the folder of to clean up the cache files

Is there a way to automatically clean up temporary folders?

The following code is a simple php code for periodically cleaning files in a folder.
ps: this code will run until the site is rebooted, so it should only be used to test the local environment. Please do not test on the site.

 
<?php 
ignore_user_abort(); // When the client is disconnected, you can let the script continue executing in the background  
set_time_limit(0); // ignore php.ini Set the script run time limit  
$interval = 5*60; // Set the execution cycle in seconds, 5 Minutes for  5*60=300 
do{ 
$dir = "temp/"; // Your temporary directory location  
$handle=opendir("{$dir}/"); 
while (false !== ($file=readdir($handle))) { 
if ($file!="." && $file!=".." && !is_dir("{$dir}/{$file}")) { 
@unlink ("{$dir}/{$file}"); 
} 
} 
closedir($handle); // Close by  opendir()  The function opens the directory  
sleep($interval); // perform 1 After 4 cycles, hibernate $interval Time, the script continues execution after hibernation  
}while(true); // Periodically execute scripts  

According to an idea on the Internet, build an flag.txt file and enter 1 or 0 in it. "0" means stop execution, and "1" means continue execution. That way you can start and stop.

 
<?php 
$flag = 1; // Set the execution flag to 1 , is executed by default  
ignore_user_abort(); // When the client is disconnected, you can let the script continue executing in the background  
set_time_limit(0); // ignore php.ini Set the script run time limit  
$interval = 5*60; // Set the execution cycle in seconds, 5 Minutes for  5*60=300 
do{ 
$flagfile = "flag.txt"; // Logo placed in file" flag.txt ". " 0 "Stands for stop execution," 1 "Means to continue the execution  
if(file_exists($flagfile) && is_readable($flagfile)) { // Read file contents  
$fh = fopen($flagfile,"r"); 
while (!feof($fh)) { 
$flag = fgets($fh); // Store logo  
} 
fclose($fh); 
} 
$dir = "temp/"; // Your temporary directory location  
$handle=opendir("{$dir}/"); 
while (false !== ($file=readdir($handle))) { 
if ($file!="." && $file!=".." && !is_dir("{$dir}/{$file}")) { 
@unlink ("{$dir}/{$file}"); 
} 
} 
closedir($handle); // Close by  opendir()  The function opens the directory  
sleep($interval); // perform 1 After 4 cycles, hibernate $interval Time, the script continues execution after hibernation  
}while($flag); 

php deletes folders and all files under them

 
<? 
function deldir($dir) { 
// First, delete the files in the directory:  
$dh=opendir($dir); 
while ($file=readdir($dh)) { 
if($file!="." && $file!="..") { 
$fullpath=$dir."/".$file; 
if(!is_dir($fullpath)) { 
unlink($fullpath); 
} else { 
deldir($fullpath); 
} 
} 
} 
closedir($dh); 
// Delete current folder:  
if(rmdir($dir)) { 
return true; 
} else { 
return false; 
} 
} 
?> 

Example: delete all ".svn "folders under a folder (including its contents).

 
<?php 
function delsvn($dir) { 
$dh=opendir($dir); 
// Find out all ".svn "   Folder:  
while ($file=readdir($dh)) { 
if($file!="." && $file!="..") { 
$fullpath=$dir."/".$file; 
if(is_dir($fullpath)) { 
if($file==".svn"){ 
delsvndir($fullpath); 
}else{ 
delsvn($fullpath); 
} 
} 
} 
} 
closedir($dh); 
} 
function delsvndir($svndir){ 
// First, delete the files in the directory:  
$dh=opendir($svndir); 
while($file=readdir($dh)){ 
if($file!="."&&$file!=".."){ 
$fullpath=$svndir."/".$file; 
if(is_dir($fullpath)){ 
delsvndir($fullpath); 
}else{ 
unlink($fullpath); 
} 
} 
} 
closedir($dh); 
// Delete directory folder  
if(rmdir($svndir)){ 
return true; 
}else{ 
return false; 
} 
} 

$dir=dirname(__FILE__); 
//echo $dir; 
delsvn($dir); 
?>