function links_add_base_url( $content, $base, $attrs = array('src', 'href') {}

Add 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.


  • string $content: String to search for links in.
  • string $base: The base URL to prefix to links.
  • array $attrs: The attributes which should be processed.

Return values

returns:The processed content.

Source code

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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