ID: 46148
User updated by: Yuji1 at mail dot com
Reported By: Yuji1 at mail dot com
Status: Open
Bug Type: Scripting Engine problem
Operating System: Windows XP Pro SP2
PHP Version: 5.2.6
New Comment:
Compare please, the following:
Your example: (strlen($foo)<=300)?$foo:substr($foo,0,300)
My example: ((strlen($foo) <= 300) ? substr($foo[1], 0, 300) :
$foo[1])
...So like, tell me where I screwed up then?
Previous Comments:
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[2008-09-22 08:40:14] tf at oopsilon dot com
Firstly, your ternary's the wrong way up. You're asking whether a
string is less than 300 chars long, and if it is getting the first 300
chars.
Secondly, the ternary has a higher precedence than comparison: ($foo <
300 ? 1 : 2), for example, is ($foo < (300?1:2)).
Your statement should probably be:
(strlen($foo)<=300)?$foo:substr($foo,0,300)
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[2008-09-22 02:40:33] Yuji1 at mail dot com
Description:
------------
(somefunction($someObject) someOperator $someObject) ? someStatement :
someStatement
and
((somefunction($someObject) someOperator $someObject) ? someStatement :
someStatement)
fail
but
((somefunction($someObject someOperator $someObject) ? someStatement :
someStatement)
works. :/
Reproduce code:
---------------
$queryResults was an array of strings, [1] being a string. It had
length, yes.
I used:
$queryResults[1] = (strlen($queryResults[1]) <= 300) ?
substr($queryResults[1], 0, 300) : $queryResults[1]);
It however fails.
This fails too:
$queryResults[1] = strlen($queryResults[1]) <= 300 ?
substr($queryResults[1], 0, 300) : $queryResults[1];
This works:
$queryResults[1] = (strlen($queryResults[1] <= 300) ?
substr($queryResults[1], 0, 300) : $queryResults[1]);
Expected result:
----------------
I expected it to well, shorten the length to 300.
Actual result:
--------------
Completely fails. In fact, without the (strlen($queryResults[1] <= 300)
being that way, it does this (example is of a database query, and PER
ROW IT PRINTS OUT THE FOLLOWING STRING, THE POST STRING FOR NEWS):
First post:
StringStringStringString
Second post:
StringStringStringStringStringStringString
Third post:
StringStringStringStringStringStringStringStringStringString
Etc.
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=46148&edit=1