note 92635 modified in control-structures.switch by felipe

Again, just to re-iterate, if you supply 0 as the switched element, only the first statement will run if the comparison is with text. <?php $in = array('first',0,"second"); foreach ($in as $a){ switch ($a){ case "first": print "first<br>"; break; case "second": print "second<br>"; break; } } ?> This is annoying if you're using an array where you've got key's which could be text or numbers, so I'm using the suggested idea of: <?php switch (true){ case ($a==="first"): print "first<br>"; break; case ($a==="second"): print "second<br>"; break; } ?> The reason for this as mentioned on http://uk3.php.net/ternary is that: "If you compare an integer with a string, the string is converted to a number. If you compare two numerical strings, they are compared as integers. These rules also apply to the switch statement." Effectively it's saying if ($a=="first") which becomes does ($a (0) == 0) which is yes. In my example this mean't a date had a regular expression of an email applied to it which didnt help! --was-- Again, just to re-iterate, if you supply 0 as the switched element, only the first statement will run if the comparison is with text. $in = array('first',0,"second"); foreach ($in as $a){ switch ($a){ case "first": print "first<br>"; break; case "second": print "second<br>"; break; } } This is annoying if you're using an array where you've got key's which could be text or numbers, so I'm using the suggested idea of: switch (true){ case ($a==="first"): print "first<br>"; break; case ($a==="second"): print "second<br>"; break; } The reason for this as mentioned on http://uk3.php.net/ternary is that: "If you compare an integer with a string, the string is converted to a number. If you compare two numerical strings, they are compared as integers. These rules also apply to the switch statement." Effectively it's saying if ($a=="first") which becomes does ($a (0) == 0) which is yes. In my example this mean't a date had a regular expression of an email applied to it which didnt help! http://php.net/manual/en/control-structures.switch.php