etingwall Posted January 26, 2009 Share Posted January 26, 2009 I've searched Google and the forums for this. What does the "^" carrot do in php? I had: $ans = 0.27 * ($base^0.25) and was getting bogus numbers for $ans. Changing to pow() solved my problem, but I'm curious as to what ^ does. I also have multiple conditional statements such as if($var > 10^10) Are those legitimate, or do I need to us pow()? Thanks. Link to comment https://forums.phpfreaks.com/topic/142522-what-does-the-carrot-do/ Share on other sites More sharing options...
rhodesa Posted January 26, 2009 Share Posted January 26, 2009 it's a bitwise operator: http://us.php.net/manual/en/language.operators.bitwise.php Link to comment https://forums.phpfreaks.com/topic/142522-what-does-the-carrot-do/#findComment-746832 Share on other sites More sharing options...
corbin Posted January 26, 2009 Share Posted January 26, 2009 I also have multiple conditional statements such as if($var > 10^10) Are those legitimate, or do I need to us pow()? Never use ^ unless you actually want to use it as a bitwise operator. Link to comment https://forums.phpfreaks.com/topic/142522-what-does-the-carrot-do/#findComment-746967 Share on other sites More sharing options...
.josh Posted January 27, 2009 Share Posted January 27, 2009 It also has significance in regex. Link to comment https://forums.phpfreaks.com/topic/142522-what-does-the-carrot-do/#findComment-747115 Share on other sites More sharing options...
corbin Posted January 27, 2009 Share Posted January 27, 2009 Ahhh yeah forgot about that..... Start anchor hehe. Link to comment https://forums.phpfreaks.com/topic/142522-what-does-the-carrot-do/#findComment-747137 Share on other sites More sharing options...
Daniel0 Posted January 29, 2009 Share Posted January 29, 2009 Btw it's called caret, not carrot. Just figured it'd be nice to know Link to comment https://forums.phpfreaks.com/topic/142522-what-does-the-carrot-do/#findComment-749613 Share on other sites More sharing options...
rhodesa Posted January 29, 2009 Share Posted January 29, 2009 Btw it's called caret, not carrot. Just figured it'd be nice to know i like to spell it c^r37 Link to comment https://forums.phpfreaks.com/topic/142522-what-does-the-carrot-do/#findComment-749617 Share on other sites More sharing options...
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