wordpress-functions-list/hook_debugging_functions.php at master · Alicannklc/wordpress-functions-list · GitHub

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<?php
function list_hooks( $filter = false ){
    global $wp_filter;

    $hooks = $wp_filter;
    ksort( $hooks );

    foreach( $hooks as $tag => $hook )
        if ( false === $filter || false !== strpos( $tag, $filter ) )
            dump_hook($tag, $hook);
}

function list_live_hooks( $hook = false ) {
    if ( false === $hook )
        $hook = 'all';

    add_action( $hook, 'list_hook_details', -1 );
}

function list_hook_details( $input = NULL ) {
    global $wp_filter;

    $tag = current_filter();
    if( isset( $wp_filter[$tag] ) )
        dump_hook( $tag, $wp_filter[$tag] );

    return $input;
}

function dump_hook( $tag, $hook ) {
    ksort($hook);

    echo "<pre>&gt;&gt;&gt;&gt;&gt;\t<strong>$tag</strong><br />";

    foreach( $hook as $priority => $functions ) {

        echo $priority;

        foreach( $functions as $function )
            if( $function['function'] != 'list_hook_details' ) {

                echo "\t";

                if( is_string( $function['function'] ) )
                    echo $function['function'];

                elseif( is_string( $function['function'][0] ) )
                    echo $function['function'][0] . ' -> ' . $function['function'][1];

                elseif( is_object( $function['function'][0] ) )
                    echo "(object) " . get_class( $function['function'][0] ) . ' -> ' . $function['function'][1];

                else
                    print_r($function);

                echo ' (' . $function['accepted_args'] . ') <br />';
            }
    }

    echo '</pre>';
}
?>