Adds a base URL to relative links in passed content.

By default it supports the ‘src’ and ‘href’ attributes. However this can be changed via the 3rd param.

$content string Required

String to search for links in.

$base string Required

The base URL to prefix to links.

$attrs array Optional

The attributes which should be processed.

Default: array('src', 'href')

string The processed content.

File: wp-includes/formatting.php. View all references

function links_add_base_url( $content, $base, $attrs = array( 'src', 'href' ) ) {
	global $_links_add_base;
	$_links_add_base = $base;
	$attrs           = implode( '|', (array) $attrs );
	return preg_replace_callback( "!($attrs)=(['\"])(.+?)\\2!i", '_links_add_base', $content );
}