How can relative URLs in a document affect the functionality of included files in PHP?

Relative URLs in a document can affect the functionality of included files in PHP if the paths are not correctly specified. To avoid issues, it is recommended to use absolute paths or properly configure the base URL in the document to ensure that included files are referenced correctly. 

<?php
// Set the base URL for the document
$base_url = "http://www.example.com/";

// Include a file using the base URL
include($base_url . "path/to/file.php");
?>

Keywords

relative URLs included files functionality PHP document

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