Include Variables

include runs another PHP file and makes its variables available afterward.

include_variables.php

<?php
$name = ;
include __DIR__ . "/greeting_vars.inc";
$message = $greetingPrefix . ", " . $name;

echo "prefix=" . $greetingPrefix . "\n";
echo "message=" . $message . "\n";

<?php
$name = ;
include __DIR__ . "/greeting_vars.inc";
$message = $greetingPrefix . ", " . $name;

echo "prefix=" . $greetingPrefix . "\n";
echo "message=" . $message . "\n";

<?php
$name = ;
include __DIR__ . "/greeting_vars.inc";
$message = $greetingPrefix . ", " . $name;

echo "prefix=" . $greetingPrefix . "\n";
echo "message=" . $message . "\n";

shared variables An included file can prepare a small value that the main file combines with local data.