Bug #64813 [Opn->Dup]: SimpleXMLIterator unintentionally rewinds to beginning
Edit report at https://bugs.php.net/bug.php?id=64813&edit=1
ID: 64813
Updated by: imsop@php.net
Reported by: amfriedman at gmail dot com
Summary: SimpleXMLIterator unintentionally rewinds to
beginning
-Status: Open
+Status: Duplicate
Type: Bug
Package: SimpleXML related
Operating System: Unbuntu 11
PHP Version: 5.3.25
Block user comment: N
Private report: N
New Comment:
Duplicate of https://bugs.php.net/bug.php?id=55098
Previous Comments:
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[2013-05-10 17:24:25] amfriedman at gmail dot com
Description:
------------
---
From manual page: http://php.net/manual/en/class.simplexmliterator.php
---
When under a for-loop and iterating through a SimpleXMLIterator object, merely
reading from a variable that stores the children being iterated will cause a
rewind to the beginning of the object within which you are looping.
Test script:
---------------
$xml = new SimpleXMLIterator($xml_str);
$nodes = $nodes_for_lookup = $xml->children();
$n_node = -1;
for($nodes->rewind(); $nodes->valid(); $nodes->next()) {
$node = $nodes->current();
$n_node++;
// This rewinds this loop
$value_to_check = $nodes[$n_node+1];
// This also rewinds the loop
$value_to_check = $nodes_for_lookup[$n_node+1];
// This does NOT rewind the loop (expected behavior)
$nodes_now = $xml->children();
$value_to_check = $nodes_now[$n_node+1];
}
Expected result:
----------------
The loop should NOT be rewound! Merely reading from the object should not affect
the iterator's pointer whatsoever.
Actual result:
--------------
The loop is getting rewound due to reading a specific key-based item in the
iterator object/array.
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Edit this bug report at https://bugs.php.net/bug.php?id=64813&edit=1
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