Very simple logging to a file by calling 'write_log' in our php code (wordpress edition)

write_log.php

<?php
// Taken pretty much from https://www.elegantthemes.com/blog/tips-tricks/using-the-wordpress-debug-log
//   error_log info on php site - http://php.net/manual/en/function.error-log.php
//   Just stick this function in your functions.php if you like :)

if ( ! function_exists('write_log')) {
   function write_log ( $log )  {
      if ( is_array( $log ) || is_object( $log ) ) {
        // error_log - Sends an error message to the web server's error log or to a file.
        error_log( print_r( $log, true ) );
        $to = "your_email@your_domain.com";
        $subject = date("Y-m-d h:i:sa")." :: Logging for Relocate Homes";
        $content = print_r( $log, true );
        $status = wp_mail($to, $subject, $content);
      } else {
        error_log( $log );
        $to = "your_email@your_domain.com";
        $subject = date("Y-m-d h:i:sa")." :: Logging for Relocate Homes";
        $content = $log;
        $status = wp_mail($to, $subject, $content);
      }
   }
}
?>