maximum value from an array

Finding maximum value from an array using php is quite simple. Following code finds the maximum value from an array.

$maxValue = $resultArr[0];
foreach($searchArr as $val) {
      //check for all the values for maximum value and compare it with default value  
    if($val["total_points"] > $maxPoint) {     
        $maxPoint = $val["total_points"];
    }
}
echo "Maximum value is:".$maxValue;
?>
//Similarly minimum value in an array can also be found just by changing the if condition