Adds a base URL to relative links in passed content.

Description

By default, this function supports the ‘src’ and ‘href’ attributes.
However, this can be modified via the $attrs parameter.

Parameters

$contentstringrequired

String to search for links in.

$basestringrequired

The base URL to prefix to links.

$attrsstring[]optional

The attributes which should be processed.

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

Return

Source

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 );
}

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