links_add_base_url() – Function | Developer.WordPress.org

links_add_base_url( string $content, string $base, string[] $attrs = array(‘src’, ‘href’) ): string

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

string The processed content.

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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Used by	Description
install_plugin_information()`wp-admin/includes/plugin-install.php`	Displays plugin information in dialog box form.

Changelog

Version	Description
2.7.0	Introduced.

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