functions.php

/**
 * 
 * Utility function to print to log file when using Ajax
 * 
 * Log Location: /wp-content/debug.log
 * 
 * Remember to enable Debug Log in the wp-config.php file:
 * 
 * define ('WP_DEBUG_LOG', true);
 * 
 */
function log_to_file($logstring){
	$DEBUG_THEME = true;

	if ($DEBUG_THEME) {
		ob_start();
		var_dump( $logstring );
		$contents = ob_get_contents();
		ob_end_clean();
		error_log($contents);	
	} 
 }