note 99665 added to function.variant-xor

From: Date: Mon, 30 Aug 2010 07:20:39 +0000
Subject: note 99665 added to function.variant-xor
Groups: php.notes 
Request: Send a blank email to php-notes+get-172154@lists.php.net to get a copy of this message
I've been using a lot the VARIANT_XOR function (all the VARIANT functions ar cool) and I was faceing the problem that some custom copilation of PHP, especially LAMP packs, doesn't have the VARANT functions included, so the scripts halts. I had to find an alternative for those who doesn't have an implamentation of VARIANT_XOR. I'd love if somebody improve my "A_XOR_B" function by changing the name in "VARIANT_XOR" and to run the original VARIANT_XOR function (being optimized) if it is already in the PHP compilation, else run the custom XOR code. <?php function a_xor_b($a=0, $b=0) { return ( ($a!=$b) && ($a||$b) ) ? TRUE : FALSE ; } ?> If using this function, make sure you use the same type for arguments ;-) Here is a sample code using it: <?php if ( a_xor_b(strlen($column1)>0,strlen($column2)>0) ) { $add_and=''; } if ( !a_xor_b(strlen($column1)>0,strlen($column2)>0 ) && strlen($column1)>0 ) { $add_and=' and '; } $some_sql_filter=$query_str.' having '.$column1.$add_and.$column2; ?> The use of VARIANT_XOR was identical. @PHP TEAM: the VARIANT set is so great :-) ---- Server IP: 69.147.83.197 Probable Submitter: 86.127.71.214 ---- Manual Page -- http://www.php.net/manual/en/function.variant-xor.php Edit -- https://master.php.net/note/edit/99665 Del: integrated -- https://master.php.net/note/delete/99665/integrated Del: useless -- https://master.php.net/note/delete/99665/useless Del: bad code -- https://master.php.net/note/delete/99665/bad+code Del: spam -- https://master.php.net/note/delete/99665/spam Del: non-english -- https://master.php.net/note/delete/99665/non-english Del: in docs -- https://master.php.net/note/delete/99665/in+docs Del: other reasons-- https://master.php.net/note/delete/99665 Reject -- https://master.php.net/note/reject/99665 Search -- https://master.php.net/manage/user-notes.php

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