Make array_find available for PHP < 8.4

array_find is a useful function, but only available in PHP 8.4 or later.
Here we implement it ourselves if it's not already defined, to make it
available for all supported PHP versions.

boot.php

@@ -42,6 +42,7 @@ use Zotlabs\Web\HttpMeta;
 
 require_once('vendor/autoload.php');
 
+require_once('include/php_compat.php');
 require_once('include/config.php');
 require_once('include/network.php');
 require_once('include/plugin.php');

include/php_compat.php

@@ -0,0 +1,28 @@
+<?php
+/*
+ * Forward compatibility with more recent PHP versions.
+ *
+ * SPDX-FileCopyrightText: 2026 The Hubzilla Community
+ * SPDX-FileContributor: Harald Eilertsen <haraldei@anduin.net>
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * This file contains functions that allow us to use convenient functions from
+ * later PHP versions in earlier versions where these functions may not be
+ * supported directly.
+ */
+
+if (!function_exists('array_find')) {
+
+	// array_find is defined in PHP 8.4 or higher, so for earlier PHP versions we
+	// define it here.
+	function array_find(array $array, callable $callback): mixed {
+		foreach ($array as $key => $entry) {
+			if ($callback($entry, $key) === true) {
+				return $entry;
+			}
+		}
+
+		return null;
+	}
+}