path_join( string $base, string $path )

Join two filesystem paths together.

Description Description

For example, ‘give me $path relative to $base’. If the $path is absolute, then it the full path is returned.

Parameters Parameters


(string) (Required) Base path.


(string) (Required) Path relative to $base.

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Return Return

(string) The path with the base or absolute path.

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Source Source

File: wp-includes/functions.php

function path_join( $base, $path ) {
	if ( path_is_absolute( $path ) ) {
		return $path;

	return rtrim( $base, '/' ) . '/' . ltrim( $path, '/' );

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Changelog Changelog

Version Description
2.5.0 Introduced.

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