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(PHP ActiveX) Iterate over Direct Child Nodes by IndexDemonstrates some ways to iterate over direct child nodes by index. The input XML, available at http://www.chilkatsoft.com/data/get_child.xml, is this: <root> <fruit color="red">apple</fruit> <fruit color="green">pear</fruit> <veg color="orange">carrot</veg> <meat animal="cow">beef</meat> <xyz> <fruit color="blue">blueberry</fruit> <veg color="green">broccoli</veg> </xyz> <fruit color="purple">grape</fruit> <cheese color="yellow">cheddar</cheese> </root>
<?php // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml') $xml = new COM("Chilkat.Xml"); // The sample input XML is available at http://www.chilkatsoft.com/data/get_child.xml $success = $xml->LoadXmlFile('get_child.xml'); if ($success != 1) { print $xml->LastErrorText . "\n"; exit; } // The NumChildren property contains the number of direct // child nodes. Note: The child nodes under "xyz" are NOT // direct children of "root". Therefore, the "root" node has // 7 direct children print 'NumChildren = ' . $xml->NumChildren . "\n"; // Iterate over the direct children by index. The first child // is at index 0. for ($i = 0; $i <= $xml->NumChildren - 1; $i++) { // access the tag and content directly by index: print $i . ': ' . $xml->getChildTagByIndex($i) . ' : ' . $xml->getChildContentByIndex($i) . "\n"; } print '-----' . "\n"; // Do the same as the above loop, but get the child node // and access the Tag and Content properties: for ($i = 0; $i <= $xml->NumChildren - 1; $i++) { // child is a Chilkat.Xml $child = $xml->GetChild($i); print $i . ': ' . $child->Tag . ' : ' . $child->Content . "\n"; } print '-----' . "\n"; // Do the same as the above loop, but instead of creating // a new object instance for each child, call GetChild2 to // update the object's reference instead. for ($i = 0; $i <= $xml->NumChildren - 1; $i++) { // Navigate to the Nth child. $success = $xml->GetChild2($i); print $i . ': ' . $xml->Tag . ' : ' . $xml->Content . "\n"; // Navigate back up to the parent: $success = $xml->GetParent2(); } print '-----' . "\n"; // Notice that the Content of the "xyz" node is empty. This is correct. // The "xyz" node has no Content, but 2 direct children ?> |
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