in_array value code example

Example 1: php in array

$colors = array("red", "blue", "green"); 
 
if (in_array("red", $colors)) { 
	echo "found red in array"; 
}

Example 2: check null in_array php

if (!empty($data_days) && in_array(1, $data_days, true)){ // use numeric value 1, not string

Example 3: in_array

<?
in_array("Irix", $os);
?>