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Troubleshooting of PHP errors: Difference between revisions
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* 檢查該檔案所在該目錄是否已經建立，若未建立則需要建立 [http://php.net/manual/en/function.mkdir.php mkdir]，並設定可以寫入。如果產生位置是在多層子目錄下 (巢狀的多層目錄)，則需要啟用 recursive <ref>[http://stackoverflow.com/questions/2303372/create-a-folder-if-it-doesnt-already-exist php - Create a folder if it doesn't already exist - Stack Overflow] code snippet: <nowiki>mkdir('path/to/directory', 0755, true);</nowiki> </ref> | * 檢查該檔案所在該目錄是否已經建立，若未建立則需要建立 [http://php.net/manual/en/function.mkdir.php mkdir]，並設定可以寫入。如果產生位置是在多層子目錄下 (巢狀的多層目錄)，則需要啟用 recursive <ref>[http://stackoverflow.com/questions/2303372/create-a-folder-if-it-doesnt-already-exist php - Create a folder if it doesn't already exist - Stack Overflow] code snippet: <nowiki>mkdir('path/to/directory', 0755, true);</nowiki> </ref> | ||
* 檢查該檔案/目錄是否可以寫入 | * 檢查該檔案/目錄是否可以寫入 | ||
*# 該檔案/ | *# 該檔案/目錄的 (1) 擁有者是網站使用者 (e.g. CentOS 是 apache、Ubuntu 則是 www-data<ref>[https://ubuntuforums.org/showthread.php?t=1293508 [SOLVED] How to find out Apache Username?]</ref>) 、或者是 (2) 網站使用者的群組 (e.g. CentOS 是 apache) 可以寫入 | ||
*# [http://php.net/manual/en/function.is-writable.php is_writable]: 如果要刪除檔案，需要檢查是否可以寫入 | *# [http://php.net/manual/en/function.is-writable.php is_writable]: 如果要刪除檔案，需要檢查是否可以寫入 | ||
*# SELinux (Security-Enhanced Linux) policy: {{kbd | key = httpd_sys_rw_content_t}}<ref>[https://blog.lysender.com/2015/07/centos-7-selinux-php-apache-cannot-writeaccess-file-no-matter-what/ CentOS 7 + SELinux + PHP + Apache – cannot write/access file no matter what | Lysender's Daily Log Book]</ref> | *# SELinux (Security-Enhanced Linux) policy: {{kbd | key = httpd_sys_rw_content_t}}<ref>[https://blog.lysender.com/2015/07/centos-7-selinux-php-apache-cannot-writeaccess-file-no-matter-what/ CentOS 7 + SELinux + PHP + Apache – cannot write/access file no matter what | Lysender's Daily Log Book]</ref> | ||