Find out why PHP scripts do not report errors _ php skills

PHP program errors include syntax errors, runtime errors, and logic errors. If the PHP script does not report a syntax error, why:

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 =>

The code is as follows:

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=>

The code is as follows:

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

2. set the error report level=>

The code is as follows:

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 in the PHP script=>

The code is as follows:

Error_reporting (E_ALL &~ E_NOTICE );

3. after the configuration file is changed, the service must be restarted 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 */