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wp_ajax_hidden_columns()

Ajax handler for hidden columns.

Source

File: wp-admin/includes/ajax-actions.php 

function wp_ajax_hidden_columns() {
	check_ajax_referer( 'screen-options-nonce', 'screenoptionnonce' );
	$page = isset( $_POST['page'] ) ? $_POST['page'] : '';

	if ( sanitize_key( $page ) != $page ) {
		wp_die( 0 );
	}

	$user = wp_get_current_user();
	if ( ! $user ) {
		wp_die( -1 );
	}

	$hidden = ! empty( $_POST['hidden'] ) ? explode( ',', $_POST['hidden'] ) : array();
	update_user_option( $user->ID, "manage{$page}columnshidden", $hidden, true );

	wp_die( 1 );
}

Uses

Uses Description
wp-includes/formatting.php: sanitize_key()

Sanitizes a string key.
wp-includes/pluggable.php: check_ajax_referer()

Verifies the Ajax request to prevent processing requests external of the blog.
wp-includes/pluggable.php: wp_get_current_user()

Retrieve the current user object.
wp-includes/functions.php: wp_die()

Kills WordPress execution and displays HTML page with an error message.
wp-includes/user.php: update_user_option()

Update user option with global blog capability.

Changelog

Version Description
3.1.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_ajax_hidden_columns