Online PHP editor | output for s1AhM

@ 2014-04-10T22:15:46Z

<?php

$xmlns = 'urn:foo';

$dom = new DOMDocument();

/*
  On the root level the prefix is replaced by default 
  and the namespace for the attribute is lost
*/
$root = $dom->createElementNS($xmlns, 'element');
$root->setAttributeNS($xmlns, 'foo:attribute', 'bar');
$dom->appendChild($root);

/*
  On the second level the prefix is replaced, the namespace 
  declaration is duplicated and the element gets a prefix
  that was never provided.
*/
$child = $dom->createElementNS($xmlns, 'element');
$child->setAttributeNS($xmlns, 'foo:attribute', 'bar');
$root->appendChild($child);

/*
  On the third level the prefix is replaced and the 
  element gets a prefix again.
*/
$subchild = $dom->createElementNS($xmlns, 'element');
$subchild->setAttributeNS($xmlns, 'foo:attribute', 'bar');
$child->appendChild($subchild);


/*
  If you add the element node before setting the 
  attribute it gets no prefix
*/
$subchild = $dom->createElementNS($xmlns, 'element');
$child->appendChild($subchild);
$subchild->setAttributeNS($xmlns, 'foo:attribute', 'bar');

$dom->formatOutput = TRUE;
echo $dom->saveXml();

/* Expected 

<?xml version="1.0"?>
<element xmlns="urn:foo" xmlns:foo="urn:foo" foo:attribute="bar">
  <element foo:attribute="bar">
    <element foo:attribute="bar"/>
  </element>
</element>
*/

Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.20, 8.1.25 - 8.1.28, 8.2.0 - 8.2.7, 8.2.12 - 8.2.18, 8.3.0 - 8.3.6: <?xml version="1.0"?> <element xmlns="urn:foo" xmlns:default="urn:foo" attribute="bar"> <default:element xmlns:default="urn:foo" default:attribute="bar"> <default:element default:attribute="bar"/> <default:element default:attribute="bar"/> </default:element> </element>
Output for 8.1.21 - 8.1.24, 8.2.8 - 8.2.11: <?xml version="1.0"?> <element xmlns="urn:foo" xmlns:default="urn:foo" default:attribute="bar"> <element xmlns:default="urn:foo" default:attribute="bar"> <element default:attribute="bar"/> <element default:attribute="bar"/> </element> </element>
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: <?xml version="1.0"?> <element xmlns="urn:foo" xmlns:default="urn:foo" attribute="bar"> <element attribute="bar"> <element attribute="bar"/> <element default:attribute="bar"/> </element> </element>
Output for 5.0.0 - 5.0.5: <?xml version="1.0"?> <element xmlns="urn:foo" xmlns:foo="urn:foo" attribute="bar"> <element attribute="bar"> <element attribute="bar"/> <element foo:attribute="bar"/> </element> </element>
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9: Fatal error: Cannot instantiate non-existent class: domdocument in /in/s1AhM on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Cannot instantiate non-existent class: domdocument in /in/s1AhM on line 5

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