note 118269 added to function.intval
| From: | Er.ellison | Date: | Fri, 06 Nov 2015 15:48:39 +0000 |
| Subject: | note 118269 added to function.intval | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-204095@lists.php.net to get a copy of this message | ||
i guess one of the important usage of intval is in links , because :
imagine that u have a function that uses get method (for example an integer id ) to retrieve the
data from DB ,
so for example if you get " id=58 " in your link and put that in u'r function that
retrieves data from DB , that's fine , it works well
but what if some body put the " id=58djkdjsbvjkdsbvjkdbs " in the link ON PURPOSE !
in such situation and condition he will get an Database error
because u'r function retrieves Data from DB
so it good to be use intval in such situations
because if u use that u gonna be sure that what ever that passes from u'r DB related function
is just a integer , No text and any strange character !
let me show u by example
$id = 12dfjgdfjgnd;
echo $id // output will be : 12dfjgdfjgnd
echo intval($id) // output will be : 12
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Server IP: 72.52.91.14
Probable Submitter: 37.27.26.110
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Manual Page -- http://php.net/manual/en/function.intval.php
Edit -- https://master.php.net/note/edit/118269
Del: integrated -- https://master.php.net/note/delete/118269/integrated
Del: useless -- https://master.php.net/note/delete/118269/useless
Del: bad code -- https://master.php.net/note/delete/118269/bad+code
Del: spam -- https://master.php.net/note/delete/118269/spam
Del: non-english -- https://master.php.net/note/delete/118269/non-english
Del: in docs -- https://master.php.net/note/delete/118269/in+docs
Del: other reasons-- https://master.php.net/note/delete/118269
Reject -- https://master.php.net/note/reject/118269
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