- max: documentation ( source)
- min: documentation ( source)
<?php
$marks1 = array(360,310,310,330,313,375,456,111,256);
$marks2 = array(350,340,356,330,321);
$marks3 = array(630,340,570,635,434,255,298);
echo max($marks1)."<br />";
echo min($marks2)."<br />";
echo max($marks3)."<br />";
echo min($marks3)."<br />";
?>