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Plugin API/Action Reference/wp loaded

Description

This action hook is fired once WordPress, all plugins, and the theme are fully loaded and instantiated.

Usage

add_action( 'wp_loaded', 'your callback function' );

Example

// Minify HTML codes when page is output.
add_action('wp_loaded','my_minify_html');
function my_minify_html(){
	/** 
	 * use html_compress($html) function to minify html codes.
	 */
	ob_start('html_compress');
}

function html_compress($html){
	/** 
	 * some minify codes here ...
	 */
	return $html;
}

Notes

AJAX requests should use wp-admin/admin-ajax.php. admin-ajax.php can handle requests for users not logged in.

Change Log

Since: 3.0

Source File

The wp_loaded action is located in wp-settings.php