TalkPHP - View Single Post - The most inventive way to switch 2 values

Salathe · 01-04-2008, 09:29 PM

Disclaimer: I hold no responsibility for any physical or mental injury to yourself or those in your immediate vicinity caused as a direct result of looking at my method of swapping the variables' values. You have been warned.

PHP Code:


			
$a = 1;

$b = 2;



/* 1 */ $szStory = 'The quick brown fox jumps over the lazy dog. How awesome is that?';

/* 2 */ $aMess   = compact(array_unique(str_split(preg_replace('/[^a-z]+/', '', strtolower($szStory)))));

/* 3 */ foreach (array_reverse(array_keys($aMess)) as $iKey => $szVar)

/* 4 */     (isset($pMess) or $pMess = new stdClass) and $aTemp  = array_values($aMess) and $pMess->$szVar = $aTemp[$iKey];

/* 5 */ for($iPos = 0, $iLen = count($aPos = array(2, 17, -2, 8, 32, 2, -6)); $iPos < $iLen; $iPos++)

/* 6 */     (isset($szFunc) or $szFunc = '' or 0123 === 0x53) and $szFunc .= strtolower($szStory[$iPos + $aPos[$iPos]]);

/* 7 */ $szFunc(get_object_vars($pMess));

/* 8 */ unset($szStory, $aMess, $iKey, $szVar, $pMess, $aTemp, $iPos, $iLen, $aPos, $szFunc);



// Now, magically, $a = 2 and $b = 1... don't ask how.

header('Content-Type: text/plain; charset=utf-8');

var_dump($a, $b);

01-04-2008, 09:29 PM	#8 (permalink)
Salathe Moderateur Join Date: Apr 2007 Posts: 1,393 Thanks: 5	Disclaimer: I hold no responsibility for any physical or mental injury to yourself or those in your immediate vicinity caused as a direct result of looking at my method of swapping the variables' values. You have been warned. PHP Code: $a = 1; $b = 2; /* 1 / $szStory = 'The quick brown fox jumps over the lazy dog. How awesome is that?'; / 2 / $aMess = compact(array_unique(str_split(preg_replace('/[^a-z]+/', '', strtolower($szStory))))); / 3 / foreach (array_reverse(array_keys($aMess)) as $iKey => $szVar) / 4 / (isset($pMess) or $pMess = new stdClass) and $aTemp = array_values($aMess) and $pMess->$szVar = $aTemp[$iKey]; / 5 / for($iPos = 0, $iLen = count($aPos = array(2, 17, -2, 8, 32, 2, -6)); $iPos < $iLen; $iPos++) / 6 / (isset($szFunc) or $szFunc = '' or 0123 === 0x53) and $szFunc .= strtolower($szStory[$iPos + $aPos[$iPos]]); / 7 / $szFunc(get_object_vars($pMess)); / 8 */ unset($szStory, $aMess, $iKey, $szVar, $pMess, $aTemp, $iPos, $iLen, $aPos, $szFunc); // Now, magically, $a = 2 and $b = 1... don't ask how. header('Content-Type: text/plain; charset=utf-8'); var_dump($a, $b);