即使在 php.ini 中停用了錯誤顯示，如何使持久的 PHP 通知保持沉默？

Silencing PHP Notices

Despite disabling error display in php.ini, persistent notices such as "Constant DIR_FS_CATALOG already defined" persist. How can PHP be silenced from broadcasting these messages?

Addressing the Update

Even with display_errors set to Off, notices continue to appear. This is a known quirk in PHP 5.3. Additionally, excessive call stack reporting may be observed.

Disabling Notices

Notices can be suppressed by modifying the error reporting level to exclude the E_NOTICE flag, using either the error_reporting ini setting or the error_reporting() function.

Code:

// In php.ini
error_reporting = E_ALL & ~E_NOTICE;

// In PHP code
error_reporting(E_ALL & ~E_NOTICE);

Caution

While silencing notices may alleviate the annoyance, it is essential to remember that notices often serve a purpose. Overriding a constant twice, as in the example provided, will result in an unchanged constant.

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