Example of a PHP system log cut

I'm used to setting the log path is this
/home/www/logs/domain name. log
Like what
/home/www/logs/www.yundaiwei.com.log

For ease of administration, logs need to be kept in one file by day and a log of the specified number of days, which is deleted over time.

Share the Script

#!/usr/bin/php
<?php
$logdir = '/home/www/logs/';
Reserved days include the same day
$log _save_day = 7;

$files = Glob ("{$logdir}/*");

foreach ($files as $path) {
$filename = basename ($path);
Preg_match ("/(\d{8}) \.log/", $filename, $preg);

    $date = @ $preg [1];
   
    if (empty ($date)) {
       // Day log, change filename
        $newpath = $logdir. '/' . Str_replace (' Log ', date (' Ymd ', Strtotime ("-1 day '))." Log ', $filename);
        Rename ($path, $newpath);
        echo "$path >>> $newpath \ n";
   }else{
       //More than reserved days, delete
         if (Time () +10-strtotime ($date) > 3600*24* $log _save_day) {
             unlink ($path);
            echo "$path delete!\n";
       }
   }
}

Shell_exec ('/etc/init.d/nginx reload &>/dev/null ');