致命错误:wp-db.php的最大执行时间超过60秒

I ma trying to import xml file to my new wordpress when i am trying to import after 1 minute i am getting the below error:

Fatal error: Maximum execution time of 60 seconds exceeded in C:\wamp\www\demo6\wp-includes\wp-db.php on line 1811

i added below line to wp-db.php but still iam getting same error

ini_set('max_execution_time', 1900); 

and in php.ini i changed too still same error

max_execution_time

ini_set('max_execution_time', 1900);

if you want to disable this limit, set it to 0. However, this parameter may also be not alterable if server is set so (which is a case on many hostings)

Check all your resource limits first. You can use the PHPinfo Plugin to check the resource limits. If all the limits are appropriate follow the step below:

Add set_time_limit(1000) in the wp-includes/class-http.php file. Check the below code:

<?php
/**
* HTTP API: WP_Http class
*
* @package WordPress
* @subpackage HTTP
* @since 2.7.0
*/

set_time_limit(1000);

if ( ! class_exists( 'Requests' ) ) {
require( ABSPATH . WPINC . '/class-requests.php' );

Requests::register_autoloader();
Requests::set_certificate_path( ABSPATH . WPINC . '/certificates/ca-bundle.crt' );
}

Go to this file: wp-includes/deprecated.php and find this:

@set_time_limit ( 60 );

just comment out this line and it works fine.

Because WordPress hard coded that 60 seconds limit, this hard coded setting was over-read php.ini settings. so comment out that line, and php.ini settings will start working again.