remove-file-versions-from-scripts.php

<?php
/**
 * Removes file version queries from script/stylesheet calls.
 * http://wordpress.stackexchange.com/a/96325/23011
 * 
 * Enhanced to keep query of google font stylesheets:
 * Removes “?ver=3.5.1” from http://domain.tld/wp-content/themes/theme/stlye.css?ver=3.5.1
 * Leaves http://fonts.googleapis.com/css?family=MyFont untouched.
 */
    add_filter( 'script_loader_src', 'gp130419_remove_script_version', 15, 1 );
    add_filter( 'style_loader_src', 'gp130419_remove_script_version', 15, 1 );
    function gp130419_remove_script_version( $src ){

        $url = explode( '?', $src );
    
        if( 'http://fonts.googleapis.com/css' == $url[0] ) :
            $version = explode( '&ver=', $url[1] );
            $url[1] = $version[0];
        endif;
    
        return ( 'http://fonts.googleapis.com/css' == $url[0] ) ? $url[0] . '?' . $url[1] : $url[0];
    
    }