Bug #51781 [Bgs]: array index 0 problem
Edit report at http://bugs.php.net/bug.php?id=51781&edit=1
ID: 51781
Updated by: johannes@php.net
Reported by: feng_evan at yahoo dot com
Summary: array index 0 problem
Status: Bogus
Type: Bug
Package: Arrays related
Operating System: windows xp
PHP Version: 5.2.13
New Comment:
Well people expect that this will work:
$list = array('foo', 'bar', 'baz');
$value = $list[$_GET['id']];
And well, the behavior is like that >10 years even if it might be
considered bad breaking it is worse.
Previous Comments:
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[2010-05-10 17:32:29] feng_evan at yahoo dot com
yes,i can see. "If you compare an integer with a string, the string is
converted to a number. If you compare two numerical strings, they are
compared as integers. These rules also apply to the switch statement. "
but,unacceptable intuitively
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[2010-05-10 10:57:52] johannes@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
numeric indexes are stored as integers, comparing integer 0 with a
string not starting with a digit gives true as the string is casted to
an integer.
Expected, documented, behavior. Won't change.
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[2010-05-10 09:35:52] feng_evan at yahoo dot com
Description:
------------
Array index value judgments must use absolute equal?
Test script:
---------------
$arr = array();
$arr['0'] = 'zero';
$arr['keyword'] = 'keyword';
foreach($arr as $key => $val) {
if ($key == 'keyword') {
//if ($key === 'keyword') { //ok
echo $val."\n";
}
}
//output:zero keyword
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Edit this bug report at http://bugs.php.net/bug.php?id=51781&edit=1
Thread (4 messages)