本文实例讲述了php判断文件是否被引入的方法get_included_files用法。分享给大家供大家参考，具体如下：
<?php
// 本文件是 abc.php
include 'test1.php';
include_once 'test2.php';
require 'test3.php';
require_once 'test4.php';
$included_files = get_included_files();
foreach ($included_files as $filename) {
echo "$filename\n";
}
?>
结果：
以上例程会输出：
abc.php
test1.php
test2.php
test3.php
test4.php
查看phpcms的加载文件
d:\xampp\htdocs\duanzu\index.php
d:\xampp\htdocs\duanzu\phpcms\base.php
d:\xampp\htdocs\duanzu\phpcms\libs\functions\global.func.php
d:\xampp\htdocs\duanzu\phpcms\libs\functions\extention.func.php
d:\xampp\htdocs\duanzu\phpcms\libs\functions\autoload\plugin.func.php
d:\xampp\htdocs\duanzu\phpcms\libs\functions\autoload\video.func.php
d:\xampp\htdocs\duanzu\caches\configs\system.php
d:\xampp\htdocs\duanzu\phpcms\libs\classes\application.class.php
d:\xampp\htdocs\duanzu\phpcms\libs\classes\param.class.php
d:\xampp\htdocs\duanzu\caches\configs\route.php
d:\xampp\htdocs\duanzu\phpcms\modules\home\common.php
d:\xampp\htdocs\duanzu\phpcms\model\user_model.class.php
d:\xampp\htdocs\duanzu\phpcms\libs\classes\model.class.php
d:\xampp\htdocs\duanzu\phpcms\libs\classes\db_factory.class.php
d:\xampp\htdocs\duanzu\caches\configs\database.php
d:\xampp\htdocs\duanzu\phpcms\libs\classes\db_mysqli.class.php
d:\xampp\htdocs\duanzu\phpcms\libs\classes\sendsms.class.php
d:\xampp\htdocs\duanzu\phpcms\plugin\taobao\topsdk.php
d:\xampp\htdocs\duanzu\phpcms\plugin\taobao\autoloader.php
能够窥探项目的加载流程！
以上就是php判断文件是否被引入的方法get_included_files用法示例 的内容。