Two reasons why PHP scripts do not report errors

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PHP program errors include syntax errors, runtime errors, and logic errors.

If the PHP script does not report a syntax error, why:

------------------------ @ Author chenwei <www. chenwei. ws> ---------------------------

1. In a general integrated environment, error reports are enabled by default. However, in a linux system, installation using a software package is not required,

Now you can view the PHP configuration file and open the error report =>

Display_errors = On/* PHP configuration file path:/uer/local/php/etc/php. ini */

 

Note: How to dynamically set the PHP. ini configuration file in the php script =>

Ini_set ('display _ errors ', 'on');/* display all errors */

 

2. Set the error report level =>

Error_reporting = E_ALL;/* the strictest Error Reporting level, which can be enabled during development */

Error_reporting = E_ALL &~ E_NOTICE/* errors other than notice */

Error_reporting = E_ERROR | E_PARSE | e_CORE_ERROR/* only critical runtime errors, new parsing errors, and core errors are considered */

The above three types are recommended.

 

Note: How to dynamically set the error report level of error_reporting in the PHP script =>

Error_reporting (E_ALL &~ E_NOTICE );

 

3. After changing the configuration file, restart the service to take effect =>

Apache startup:/usr/local/apache2/bin/apachectl start/* Recommended */

In addition, the Red Hat Linux private startup command: service httpd start

Restart Apache:/usr/local/apache2/bin/apachectl restart

In addition, the Red Hat exclusive startup command: service httpd restart

Stop Apache:/usr/local/apache2/bin/apachectl stop

In addition, the Red Hat exclusive startup command: service httpd stop

Restart Nginx:/usr/local/nginx/sbin/nginx-s reload/* smooth restart */

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