Script of removal from filed information files

[tahishae]

How to change the violin so that the information I'm going to ask is removed.

<?
$RD = dirname(__FILE__);
function delVirus($dir)
{
    $m = glob($dir.'/*.js');
    $ml = sizeof($m);
    if($m)
        for($i = 0; $i < $ml; ++$i)
        {
            $t = file_get_contents($m[$i]);
            echo '['.$m[$i].']';
            if($s = strpos($t, "function OQWCY"))
            {
                $t = substr($t, 0, $s);
                $t = file_put_contents($m[$i], $t);
                echo ' +';
            }
            echo '<br>';
        }
if(!$handle = opendir($dir))
    break;
while(false !== ($file = readdir($handle)))
{
    if($file != '.' &amp;&amp; $file != '..' &amp;&amp; is_dir($dir.'/'.$file))
    {
        delVirus($dir.'/'.$file);
    }
}

}

delVirus($RD);

?>

[rosemadder]

All I have to do is delete what I'm going to do is "tweet" the exact text from the beginning to the end.

if($s = strpos($t, "function OQWCY"))
{
    $t = substr($t, 0, $s);
    $t = file_put_contents($m[$i], $t);
    echo ' +';
}

Change.

$t = str_replace('_toDelete_', '', $t);
$t = file_put_contents($m[$i], $t);
echo ' +';