WordPress Alphabetical Admin Menu

snippet.php

<?php
  
  // Sort Admin Menu alphabetically
  add_filter( 'menu_order', function ($menu_ord) {
	global $menu;
	$menu_order_to_human_string_array = [];
	foreach( $menu_ord as $menu_ord_item ) {
		// Remove separators
		if( str_contains( $menu_ord_item, 'separator' ) ) {
			continue;
		}
		// Find its counterpart in the global menu
		foreach( $menu as $menu_item ) {
			if( $menu_ord_item == $menu_item[2] ) {
				$menu_order_to_human_string_array[] = [
					$menu_ord_item,
					$menu_item[0]
				];
				continue;
			}
		}
	}
	// Sort menu based on the human readable strings
	uasort($menu_order_to_human_string_array, function($a, $b) {
		if ($a[1] > $b[1]) {
				return 1;
		} elseif ($a[1] < $b[1]) {
				return -1;
		}
		return 0;
	});
	// Strip off the human readable string before returning
	$array_to_return = [];
	foreach( $menu_order_to_human_string_array as $menu_item ) {
		$array_to_return[] = $menu_item[0];
	}
	return $array_to_return ;
}, 10, 1 );