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Bug #38528 ArrayObject iteration slow
Submitted: 2006-08-21 00:35 UTC Modified: 2006-08-21 07:03 UTC
From: joel at cybersewer dot com Assigned:
Status: Not a bug Package: SPL related
PHP Version: 5.* OS: *
Private report: No CVE-ID: None
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 [2006-08-21 00:35 UTC] joel at cybersewer dot com
Iteration through a large ArrayObject (e.g. 10,000+ items) is very slow.

Reproduce code:
$a = new ArrayObject;
for ($i = 0; $i < 10000; $i++) 
    $a[] = $i;

// This is slow
foreach ($a as $k => $v);

// This is much faster, even though I thought this was basically what ArrayObject's getIterator method did.
$it = new ArrayIterator($a->getArrayCopy());
foreach ($it as $k => $v);


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 [2006-08-21 07:03 UTC]
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at and the instructions on how to report
a bug at

now way to do it different
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