your most use function

[falsepride]

in this thread i was hoping everyone could share thier most use php function with everyone else. mite actually help some people in the future. my most useful one is, that i use so many times i can't count is(it's really 2 but i only split it, becuase in the end it saved me space.):

function readintostring($filename) {
  $final = "";
  $file = file($filename);
  array_shift($file);
  foreach($file as $line) {
    $line = trim($line);
    $final .= "$line"; 
  }
  return $final;
}
function readintomdarray($filename, $safecharacter1, $safecharacter2) {
	$mdarray = array();
	$file = readintostring($filename);
	$temp = explode($safecharacter1, $file);
	array_pop($temp);
	$length = count($temp);
	for ($i = 0; $i < $length; $i++) {
		$mdarray[$i] = array();
		$temp2 = explode($safecharacter2, $temp[$i]);
		$length2 = count($temp2);
		for ($i2 = 0; $i2 < $length2; $i2++) {
			$mdarray[$i][$i2] = $temp2[$i2];
		}
	}
	return $mdarray;
}