test.PHP的：

<?PHP
function check_code_file($filename)
{
    $filename = escapeshellcmd($filename);
    system("PHP -l $filename 2>/dev/null 1>/dev/null",$status);
    if ($status) return false;
    return true;
}
if (check_code_file('test-good.PHP'))
{
    include('test-good.PHP');
}
if (check_code_file('test-bad.PHP'))
{
    include('test-bad.PHP');
}
print "finished\n";

测试good.PHP：

<?PHP
print "here\n";

测试bad.PHP：

<?PHP
die(

$PHP test.PHP

here
finished