經(jīng)常當(dāng)php頁面中利用include, require, require_once包含了一些其他位置的頁面時(shí)，會(huì)出現(xiàn)錯(cuò)誤，比如沒有發(fā)現(xiàn)次頁面，或者權(quán)限不允許等，可以根據(jù)以下方法來排除

1. 出現(xiàn)“未找到文件“類似的錯(cuò)誤時(shí)候，檢查include文件的位置是否正確，下面引用php手冊(cè)頁面的原話：

Files for including are first looked in include_path relative to the current working directory and then in the directory of the current script. E.g. if your include_path is libraries, current working directory is /www/, you included include/a.php and there is include "b.php" in that file, b.php is first looked in /www/libraries/ and then in /www/include/. If filename begins with ./ or ../, it is looked only in include_path relative to the current working directory.

2. 當(dāng)出現(xiàn)permission deny 類似錯(cuò)誤的時(shí)候，按以下方法排除

a) 檢測被包含的文件讀權(quán)限是否打開

b) 檢測被包含的文件路徑上的每個(gè)目錄的x權(quán)限是否打開，該權(quán)限決定了目錄能否被瀏覽。