How to Turn Off PHP Notices

How do I turn off PHP Notices?

You can disable notices by setting error reporting level to E_ALL & ~E_NOTICE; using either error_reporting ini setting or the error_reporting() function.

However, notices are annoying (I can partly sympathize) but they serve a purpose. You shouldn't be defining a constant twice, the second time won't work and the constant will remain unchanged!

How to disable notice outputs in PHP?

If you're sure you want to disable notices, then you can just put a @ sign before require_once or before a other function that throws notices/errors.

Remove warning messages in PHP

You really should fix whatever's causing the warning, but you can control visibility of errors with error_reporting(). To skip warning messages, you could use something like:

error_reporting(E_ERROR | E_PARSE);

How to turn off notice reporting in xampp?

Try to do a phpinfo(); just before your $Fname = $_POST["Fname"]; line. What's the error_reporting property value ? See this or this to understand the value displayed in the table.

If it's not what you expected, check that the property is not changed by php.
It's also possible you edited the wrong php.ini file : XAMPP tends to copy the original php.ini file and create his own. Use phpinfo();, search for 'php.ini' string in the table : you will find the path of the php.ini file used.

Last thing, maybe the problem is that you did not properly restarted apache after you changed php.ini file. The thing is that xamp is a distinct process of the apache service. Closing XAMP do not make apache service to be stopped, you better use XAMPP Control Panel to stop/start apache.

How can I disable notices and warnings in PHP within the .htaccess file?

It is probably not the best thing to do. You need to at least check out your PHP error log for things going wrong ;)

# PHP error handling for development servers
php_flag display_startup_errors off
php_flag display_errors off
php_flag html_errors off
php_flag log_errors on
php_flag ignore_repeated_errors off
php_flag ignore_repeated_source off
php_flag report_memleaks on
php_flag track_errors on
php_value docref_root 0
php_value docref_ext 0
php_value error_log /home/path/public_html/domain/PHP_errors.log
php_value error_reporting -1
php_value log_errors_max_len 0

Unable to turn off notices in php.ini

I have achieved this by restarting the server. Thanks.

Stop Notices From Displaying In PHP

This will turn off notices for the environment programmatically-- from PHP.net.

// Report all errors except E_NOTICE   
error_reporting(E_ALL ^ E_NOTICE);

In some places, you can prefix the statement with "@" and it will silence just that location if it causes a notice.

How can I stop PHP notices from appearing in wordpress?

You need to edit your:

wp-config.php

file and modify the following here:

error_reporting(0);
@ini_set('display_errors', 0);

otherwise Wordpress overwrites the ALERTS set by PHP.INI