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pmgupte/smart_swap.php

Created June 17, 2013 12:07
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Many of the times we face a typical question in interviews: “swap two variables without using third variable”. well, when I ask the same question while interviewing any candidate for PHP, I get the same typical answer of adding and subtracting the two variables. But when I ask them to do it with only one executable statement, they simply can’t. …
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smart_swap.php
<?php
$a=10; $b=20;
list($b, $a) = array($a,$b);
?>
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