Edit report at http://bugs.php.net/bug.php?id=30473&edit=1
ID: 30473
Updated by: johan...@php.net
Reported by: lenar at city dot ee
Summary: in_array not working correctly
-Status: Open
+Status: Bogus
Type: Feature/Change Request
-Package: Feature/Change Request
+Package: *General Issues
Operating System: Debian
PHP Version: 4.3.9
Block user comment: N
New Comment:
in_array has a third parameter to be strict since PHP 4.2.0.
Previous Comments:
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[2010-08-12 14:27:24] alpust at gmail dot com
So,
$array_symbols = array(0, '1', '5', 'abc', '<', 'hello');
print in_array('z', $array_symbols);
Result: 1
does it normal?
------------------------------------------------------------------------
[2004-10-19 13:38:18] lenar at city dot ee
Trying this as feature request to get review...
------------------------------------------------------------------------
[2004-10-19 13:36:14] lenar at city dot ee
One more comment.
What I want to say is that comparisons in array functions should happen
like 'eq' operator does it in perl.
That would be intuitive. You can't change this, I presume, but that
would be the correct way IMHO.
------------------------------------------------------------------------
[2004-10-19 11:56:05] lenar at city dot ee
I don't know then. All I'm sure the logic behind string and int
comparison isn't as one would expect from language doing automatic type
conversions.
You should cast (string) to (int) or (float) only if (string) is
numeric. Otherwise it's only logical to cast (int)/(float) operand to
string before comparing. That's how I would expect automatic type
conversion behave. Currently it's not intuitive.
("test" == 0) evaluating to true just doesn't seem right.
Just my $0.02 (which I do not have).
------------------------------------------------------------------------
[2004-10-19 09:13:42] der...@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
There is no BC here, I tried a couple of versions (4.0.0, 4.0.7, 4.1.2,
4.2.3, 4.3.5-4.3.9) and all do this:
der...@tequila:/dat/dev/php/php-4.0.0$ ./php
<?php
var_dump(in_array("test", array(0)));
?>
X-Powered-By: PHP/4.0.0
Content-type: text/html
bool(true)
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