php warning: include(footer.php) [function.include]: failed to open stream: no such file or directory in d:\phpstudy\www\index.php on line 19Warning: include() [function.include]: Failed opening 'footer.php' for inclusion (include_path='.;C:\php\pear') in D:\phpStudy\WWW\index.php on line 19PHP 8.5.5PHP 8.5.5 是 PHP 8.5 分支的维护更新版本。该版本延续了“小步快跑”的迭代逻辑，通过深度错误修复、底层性能微调以及安全加固，旨在为开发者提供一个更健壮、更高效的运行环境。该版本严格遵守语义化版本规范，不包含破坏性变更。下载
php-网页正常运行，但是网页最下端多出来两行代码，为什么？
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