Delete log files from 3 days ago, Fatal error, how to resolve

Delete log files from 3 days ago, Fatal error
I do not understand PHP, now want to implement a function, delete the specified directory three days before the file (log), on the Baidu search for a delete directory function, as follows

PHP Code

  
       function Del_directory ($dir) {        if (! ( $mydir = @dir ($dir))) {            return;        }        while ($file = $mydir->read ()) {            if (Is_dir ("$dir $file") && $file! = '. ' && $file! = ' ... ') {                @chmod ("$dir $file", 0777);                Del_dir ("$dir $file");            } ElseIf (Is_file ("$dir/$file")) {                [email protected] ($file);//Read the last updated time of the file                if ()-$file _time > 3600 * 24 * 3) {                    @chmod ("$dir/$file", 0777);                    @unlink ("$dir/$file");        }}} $mydir->close ();        @chmod ($dir, 0777);        @rmdir ($dir);    }

Error: Fatal error:unsupported operand types in D:\wamp\www\Player\playlogviewer.php on line 36
Corresponds to this line of code: if (Time ()-$file _time > 3600 * 24 * 3)

Trouble to see what is the problem, thank you!



------Solution--------------------

PHP code

 $stat = @stat ($file); $file _time= $stat [' Mtime '];// The last update time to read the file 
------solution--------------------
 Fatal error: The unsupported operation data type 
 produces a reason for transferring data that does not conform to the data type to some functions. In particular, it is easy to pass an array to a function, and the function should accept the number of arguments. 
------Solution--------------------
 if (Time ()-$file _time > 3600 * 3) 
 You try it () separately 
 if (time ()-$file _ Time) > (3600*24*3)) {} 
------solution--------------------
 Array Stat (string $filename); 
 returns an array. 
 [email protected] ($file);//Read file Last updated 
 if (time ()-$file _time > 3600 * 24 * 3) {//This will be used in arrays. Check Stat. () 
 
 with $stat [' Mtime '] 
 
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