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@mtx-z
Created May 27, 2018 17:27
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WordPress - various removers
<?php
/**
* Various removers
* todo: all may not be still needed/usefull/correct
*/
/**
* @param $headers
*
* @return mixed
* remove xpingback header
*/
function x_pingback_head( $headers ) {
unset( $headers['X-Pingback'] );
return $headers;
}
add_filter( 'wp_headers', __NAMESPACE__ . '\\x_pingback_head' );
/**
* remove header info
*/
function remove_header_info() {
remove_action( 'wp_head', 'feed_links_extra', 3 );
remove_action( 'wp_head', 'rsd_link' );
remove_action( 'wp_head', 'wlwmanifest_link' );
remove_action( 'wp_head', 'wp_generator' );
remove_action( 'wp_head', 'start_post_rel_link' );
remove_action( 'wp_head', 'index_rel_link' );
remove_action( 'wp_head', 'parent_post_rel_link', 10 );
remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10 ); // for WordPress >= 3.0
}
add_action( 'init', __NAMESPACE__ . '\\remove_header_info' );
/**
* @return string
*/
function head_remove_version() {
return '';
}
add_filter( 'the_generator', __NAMESPACE__ . '\\head_remove_version' );
add_filter( 'the_generator', '__return_false' );
/**
* @param $matches
*
* @return string
* helper for replacing query var of asset from remove_wp_assets_qvar()
*/
function removeVersionCallback( $matches ) {
return 'ver=' . md5( print_r( $matches, true ) . "" );
}
/**
* @param $src
*
* @return mixed|string
* Remove assets query var
* can be bypassed when forcing nginx pagespeed to process assets from queried URL
* By default, pagespeed does not rewrite them
*/
function remove_wp_assets_qvar( $src ) {
$src = preg_replace_callback( '/ver=[^&]*/', __NAMESPACE__ . '\\removeVersionCallback', $src );
if ( strpos( $src, 'ver=' ) ) {
$src = remove_query_arg( 'ver', $src );
}
return $src;
}
add_filter( 'style_loader_src', __NAMESPACE__ . '\\remove_wp_assets_qvar', 9999 );
add_filter( 'script_loader_src', __NAMESPACE__ . '\\remove_wp_assets_qvar', 9999 );
/**
* Redirect back helper
*/
function redirect_back() {
if ( wp_get_referer() ) {
wp_safe_redirect( wp_get_referer() );
} else {
wp_safe_redirect( get_home_url() );
}
}
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