viralvadgama · September 16, 2015 11:32
diff --git a/swap.php b/swap.php
 <?php
 	$a = 5;
 	$b = 2;		  
 	
 		// status after evaluation
 		// initaial 5,2
 	
 	$a = $a + $b; // 7,2
 	$b = $a - $b; // 7,5
 	$a = $a - $b; // 2,5
	<?php
	$a = 5;
	$b = 2;

	// status after evaluation
	// initaial 5,2

	$a = $a + $b; // 7,2
	$b = $a - $b; // 7,5
	$a = $a - $b; // 2,5