Wordpress Functions

WordpressFunctions.php

<?php
// SQL Logger
function sql_logger() {
    global $wpdb;
    $log_file = fopen(ABSPATH.'/sql_log.txt', 'a');
    fwrite($log_file, "//////////////////////////////////////////\n\n" . date("F j, Y, g:i:s a")."\n");
    foreach($wpdb->queries as $q) {
        fwrite($log_file, $q[0] . " - ($q[1] s)" . "\n\n");
    }
    fclose($log_file);
}
add_action('shutdown', 'sql_logger');

// Add shortcode
function function_callback_name($atts) { }
add_shortcode('shortcode_name', 'function_callback_name');

// Load custom js from child theme
function load_scripts() {
    wp_enqueue_script(
        'custom',
        get_stylesheet_directory_uri() . '/custom.js',
        array( 'jquery' )
    );
}
add_action( 'wp_enqueue_scripts', 'load_scripts' );