PhpHow-ToBeginner · 3 min read

How to Get Current URL in PHP: Simple Guide

To get the current URL in PHP, combine $_SERVER['HTTP_HOST'] and $_SERVER['REQUEST_URI']. Use "https://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] to build the full URL including the path and query string.

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Syntax

Use the following parts to build the current URL:

$_SERVER['HTTP_HOST']: The domain name (like example.com).
$_SERVER['REQUEST_URI']: The path and query string (like /page.php?id=5).
Optionally, add https:// or http:// depending on the protocol.

php

$currentUrl = "https://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

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Example

This example shows how to print the full current URL including the protocol, domain, path, and query string.

php

<?php
$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? "https://" : "http://";
$currentUrl = $protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
echo $currentUrl;
?>

Output

http://localhost/example.php?id=10

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Common Pitfalls

Common mistakes include:

Not checking if HTTPS is used, so the URL always starts with http://.
Using $_SERVER['PHP_SELF'] instead of $_SERVER['REQUEST_URI'], which misses query strings.
Assuming $_SERVER['HTTP_HOST'] is always set, which might not be true in some CLI or unusual server setups.

php

<?php
// Wrong: misses query string
// echo "http://" . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];

// Right: includes query string and protocol
$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? "https://" : "http://";
echo $protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
?>

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Quick Reference

Summary tips to get current URL in PHP:

Use $_SERVER['HTTP_HOST'] for domain.
Use $_SERVER['REQUEST_URI'] for path and query.
Check $_SERVER['HTTPS'] to decide protocol.
Combine all parts to get full URL.

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Key Takeaways

Combine protocol, host, and request URI to get the full current URL in PHP.

Check if HTTPS is on to use the correct protocol prefix.

Use $_SERVER['REQUEST_URI'] to include path and query string, not $_SERVER['PHP_SELF'].

Be aware that server variables may not be set in all environments.

Always test your code on your server to confirm the URL is correct.