note 99957 added to function.return

From: Date: Thu, 16 Sep 2010 16:23:41 +0000
Subject: note 99957 added to function.return
Groups: php.notes 
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This is for mostly the newbies. If you create a function and you want it to either return false or true then you must explicitly state it. I know this should go without saying. But it's better explained with an example. I'm looking through an array to see if the contents of the array mismatch ( ex: email verification). function check_array()){ foreach($array as $key => $value){ if($value != $match){ echo "The email fields don't match!"; return; // this by default returns false. } } } Now what if the array I pass this time is valid and the contents of it match? Then the function check_array() should return true right? not so fast.If I still call this function it will still return false and thus cause unexpected results. It's not like the typical: if(function_name()) echo "i know this is true"; else echo"this has to be false"; Instead when using the return and say: if(check_array()) echo " then this part will never execute because return is always false"; else "but this part will always execute but return false, even if the array contents match simply because return is always false"; If I want it to return true when the array contents all match then I must explicitly add the else statement: else return true; like this: function check_array()){ foreach($array as $key => $value){ if($value != $match){ echo "The email fields don't match!"; return; // this by default returns false. }else return true; } } ---- Server IP: 64.71.164.2 Probable Submitter: 138.23.171.29 ---- Manual Page -- http://www.php.net/manual/en/function.return.php Edit -- https://master.php.net/note/edit/99957 Del: integrated -- https://master.php.net/note/delete/99957/integrated Del: useless -- https://master.php.net/note/delete/99957/useless Del: bad code -- https://master.php.net/note/delete/99957/bad+code Del: spam -- https://master.php.net/note/delete/99957/spam Del: non-english -- https://master.php.net/note/delete/99957/non-english Del: in docs -- https://master.php.net/note/delete/99957/in+docs Del: other reasons-- https://master.php.net/note/delete/99957 Reject -- https://master.php.net/note/reject/99957 Search -- https://master.php.net/manage/user-notes.php

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