The max_input_vars directive can be configured in .htaccess, php.ini, or wp-config.php file. We recommend increasing the default value to 3000. Here is how you can do it: In .htaccess php_value max_input_vars 3000 In php.ini max_input_vars = 3000 In wp-config.php @ini_set( 'max_input_vars' , 3000 );
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