PHP/Utility Function/require

require() operates like include(), including a template.

 
It has this syntax: require(file insertion_file)
The insertion_file will be included in the script. 
// A sample file to be inserted (init.tpl)
<?
$site_title = "PHP";
$contact_email = "w@hotmail.ru";
$contact_name = "Sales";
?>
//Making use of init.tpl
<? require ("init.tpl"); ?>

Using require to Load Files in PHP

 
//File: library.inc 
<?
    function is_leapyear($year = 2004) {
        $is_leap = (!($year % 4) && (($year % 100) || !($year % 400)));
        return $is_leap;
    }
?>

<?php
    require ("library.inc");     // Parentheses are optional
    $leap = is_leapyear(2003);
?>