" .
"".
"" .
$cs->diff($diff) . "
";
}
function diff_strings($before, $now)
{
$tempdir = sys_get_temp_dir();
$afile = tempnam($tempdir, "mtrack");
$bfile = tempnam($tempdir, "mtrack");
file_put_contents($afile, $before);
file_put_contents($bfile, $now);
static $diff = false;
if (!$diff) {
require_once 'System.php';
$diff= System::which('diff');
}
if (PHP_OS == 'SunOS') {
// TODO: make an option to allow use of gnu diff on solaris
$diff = shell_exec("$diff -u $afile $bfile");
$diff = str_replace($afile, 'before', $diff);
$diff = str_replace($bfile, 'now', $diff);
} else {
$diff = shell_exec("$diff --label before --label now -u $afile $bfile");
}
unlink($afile);
unlink($bfile);
$diff = htmlentities($diff, ENT_COMPAT, 'utf-8');
return $diff;
}
}