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delayedinsanity · 06-10-2008, 03:01 PM

Salathe doesn't sleep. He's out there, maintaining the balance.

It might be harder to read if you're not first familiar with the ternary operator. It's a really handy shorthand for a basic IF statement.

PHP Code:


			
/* in english */
if (statement evaluates true) ? 'then do this' : 'otherwise do this';

/* in PHP */

// echo's "$somevar is set" if true
echo (isset($somevar)) ? '$somevar is set' : '$somevar is not set';

// sets $isSet to true, if true
$isSet = (isset($somevar)) ? true : false;

// sets $answer to "$somevar is less than or equal to $othervar" if true
$answer = ($somevar <= $othervar) ? '$somevar is less than or equal to $othervar' : '$othervar is less than $somevar';

So what Salathe has done;
If $pos = strpos($text0, '(')) doesn't return false, than that means '(' was found somewhere in $text0 and the statement evaluates to true. If it evaluates to true, the ternary executes the code found after the ? and before the :, which in this case returns a substr of $text0, from the start of the string to the position where the first ( was found. If it evaluates to false, it executes the code found after the : and before the end of the block, which in this case would return a value of FALSE.
-m

06-10-2008, 03:01 PM	#4 (permalink)
delayedinsanity is cute and cuddly Join Date: Mar 2008 Location: Vegas, Baby Posts: 963 Thanks: 31	Salathe doesn't sleep. He's out there, maintaining the balance. It might be harder to read if you're not first familiar with the ternary operator. It's a really handy shorthand for a basic IF statement. PHP Code: /* in english / if (statement evaluates true) ? 'then do this' : 'otherwise do this'; / in PHP */ // echo's "$somevar is set" if true echo (isset($somevar)) ? '$somevar is set' : '$somevar is not set'; // sets $isSet to true, if true $isSet = (isset($somevar)) ? true : false; // sets $answer to "$somevar is less than or equal to $othervar" if true $answer = ($somevar <= $othervar) ? '$somevar is less than or equal to $othervar' : '$othervar is less than $somevar'; So what Salathe has done; If $pos = strpos($text0, '(')) doesn't return false, than that means '(' was found somewhere in $text0 and the statement evaluates to true. If it evaluates to true, the ternary executes the code found after the ? and before the :, which in this case returns a substr of $text0, from the start of the string to the position where the first ( was found. If it evaluates to false, it executes the code found after the : and before the end of the block, which in this case would return a value of FALSE. -m