note 114059 added to class.splobjectstorage
| From: | AdamMonsen | Date: | Tue, 07 Jan 2014 17:48:23 +0000 |
| Subject: | note 114059 added to class.splobjectstorage | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-198142@lists.php.net to get a copy of this message | ||
Note some inconsistent/surprising behavior in SplObjectStorage to preserve backwards compatibility.
You can't properly use foreach with key/value syntax.
<?php
$spl = new SplObjectStorage ();
$keyForA = new StdClass();
$keyForB = new StdClass();
$spl[$keyForA] = 'value a';
$spl[$keyForB] = 'value b';
foreach ($spl as $key => $value)
{
// $key is NOT an object, $value is!
// Must use standard array access to get strings.
echo $spl[$value] . "\n"; // prints "value a", then "value b"
}
// it may be clearer to use this form of foreach:
foreach ($spl as $key)
{
// $key is an object.
// Use standard array access to get values.
echo $spl[$key] . "\n"; // prints "value a", then "value b"
}
?>
See https://bugs.php.net/bug.php?id=49967
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Manual Page -- http://php.net/manual/en/class.splobjectstorage.php
Edit -- https://master.php.net/note/edit/114059
Del: integrated -- https://master.php.net/note/delete/114059/integrated
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