ID: 25566
User updated by: Jared dot Williams1 at ntlworld dot com
Reported By: Jared dot Williams1 at ntlworld dot com
Status: Bogus
Bug Type: Scripting Engine problem
PHP Version: 4.3.3
New Comment:
I do understand that time has fixed this "feature".
As for explicit casting, it does result in different behaviour, when
comparing string/values.
$x = '0xF';
$y = (int)$x;
echo($x == 15 ? 'YES' : 'NO');
echo('<br />');
echo($y == 15 ? 'YES' : 'NO');
Outputs:
YES
NO
Strict equivalence testing doesnt help when you wish
"1234" and 1234 to be considered equal.
Previous Comments:
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[2003-09-20 20:17:33] [EMAIL PROTECTED]
That's why you have the === operator. "12345aaaa" has always evaluated
to 12345 when cast to an integer and it always will. That also means
that it must be equivalent to 12345 when used in an integer comparison.
You need to be explicit in your comparisons and use explicit casting
elsewhere.
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[2003-09-20 19:29:23] Jared dot Williams1 at ntlworld dot com
The documentation does not help.
a string containing a beginning with a numeric character, but also
containing non-numerics surely should not be cast to an integer before
comparision?
I understand that "12345" == 12345 but the string "12345xxx" isnt
12345.
------------------------------------------------------------------------
[2003-09-20 17:58:26] [EMAIL PROTECTED]
See these manual pages:
http://www.php.net/switch
http://www.php.net/manual/en/types.comparisons.php
Maybe the manual should explain this a bit better.
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[2003-09-20 06:20:46] Jared dot Williams1 at ntlworld dot com
How's this for an impossibility..
echo('a' != 0 ? 'TRUE' : 'FALSE');
echo('<br />');
echo('a' ? 'TRUE' : 'FALSE');
Outputs:
FALSE
TRUE
------------------------------------------------------------------------
[2003-09-20 06:08:53] Jared dot Williams1 at ntlworld dot com
Oh erm, seems its not limited to switch either. :/
echo('a' == 0 ? 'YES' : 'NO');
Outputs: YES
echo('3a' == 3 ? 'YES' : 'NO');
Outputs: YES
echo(4 == '4a' ? 'YES' : 'NO');
Outputs: YES
Surely these cant be considered equivalent.
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