note 39681 added to function.intval

From: Date: Sat, 07 Feb 2004 09:56:07 +0000
Subject: note 39681 added to function.intval
Groups: php.notes 
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Sometimes intval just won't cut it. For example if you want to use an unsigned 32-bit int and need all 32 bits. Recently, I wrote a little script that took and integer and converted it to an IP address. After realizing I couldn't just mod the whole thing, since the sign bit throws it off (and compensating for that), we ran into a problem where if it was entered into a form, the value somehow wasn't converted to an integer properly, at least not implicitly. The solution for this, and the way I recommend converting a string to an integer, is: $num = $num + 0; and PHP will leave your number alone; it'll just know it's a number. Such is the fun of a loosely-typed language. :) ---- Manual Page -- http://www.php.net/manual/en/function.intval.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+39681 Delete -- http://master.php.net/manage/user-notes.php?action=delete+39681&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+39681&report=yes Search -- http://master.php.net/manage/user-notes.php

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