short-circuiting loops

gistfile1.aw

<?php

/**
 * Improper:
 * - can become hard to read if the else block is large
 * - anytime you indent you decrease legibility.
 * - only applicable for this instance where an item will be skipped and you continue
 *   or break a loop.
 */
foreach( $fields as $field )
{
	if( !isset($field) )
	{
		continue;
	}
	else
	{
		// do some things with $field
	}
}

OR

foreach( $fields as $field )
{
	if( isset($field) )
	{
		// do some things with $field
	}
}

/**
 * Proper:
 * - easier to read
 * - less indentation
 * - short circuit is explicit enough for any programmer to understand
 */
foreach( $fields as $field )
{
	if( !isset($field) ) continue;
	
	// do some things with $field
}