if/else The Right Way

if-else-right-away.php

<?php
namespace KnowTheCode;

/**
 * This version shows the right way to do the if/else logic.  Notice
 * that the if conditional expression is testing for a "truthy" condition
 * and the work is being done in it's code block.  
 * 
 * The else is now set to default state.
 *
 * @since 1.0.0
 *
 * @param string $event_name
 *
 * @return int
 */
function count_number_of_times_fired( $event_name ) {
	static $events = array();

	if ( isset( $events[ $event_name ] ) ) {
		$events[ $event_name ]++;
	} else {
		$events[ $event_name ] = 1;
	}

	return $events[ $event_name ];
}

d( count_number_of_times_fired( 'loop_start' ) );