How to delete expired files in php

php method to delete expired files: [public function download_project($array)$tmp = 'tmp_down';$savepath1 = '../public'.$tmp;$path1 = dir(...] .

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

You must have encountered such a situation, server The disk space occupied is 100%. The reason may be that the temporary folder for project package download is full.

So how should we solve this problem? In fact, it is very simple, just

Solution: Clear the expired files before each download so that they will not take up disk space.

Specific code:

public function download_project($array)
{
// 循环删除过期文件 start
$tmp = 'tmp_down';
$savepath1 = '../public'.$tmp;
$path1 = dir($savepath1);
while (($item = $path1->read())!=false) {
if($item=='.' || $item=='..'){
continue;
}else{
$file = $savepath1.'/'.$item;
$times = time()-filemtime($file);
if($times>24*3600){
unlink($file);
}
}
}

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