Warning: Never display any error messages in a production environment! (Recommended learning: PHP video tutorial)
Display errors (display_errors) and error reporting (error_reporting) are two different things. When an error occurs in a PHP script, you can choose whether to report the error (record it in the error log) according to the settings. If display_errors is turned on in the settings, the error message will be printed to the screen at the same time.
Commonly used settings in projects
switch (ENVIRONMENT)
{
// 对于开发环境，报告所有错误，同时显示到屏幕上
case 'development':
error_reporting(-1);
ini_set('display_errors', 1);
break;
// 对于测试和生产环境，不显示错误，5.3 以上的版本，不报告通知、废弃方法、严格这几类错误
case 'testing':
case 'production':
ini_set('display_errors', 0);
if (version_compare(PHP_VERSION, '5.3', '>='))
{
error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT & ~E_USER_NOTICE & ~E_USER_DEPRECATED);
}
else
{
error_reporting(E_ALL & ~E_NOTICE & ~E_STRICT & ~E_USER_NOTICE);
}
break;
default:
header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
echo 'The application environment is not set correctly.';
exit(1); // EXIT_ERROR
}Modify the php.ini configuration file
error_reporting = E_ALL # 报告所有错误 display_errors = On # 显示错误
The above is the detailed content of php error display configuration. For more information, please follow other related articles on the PHP Chinese website!
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