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Digg  xpath_new_context
Creates new xpath context
(PHP 4 >= 4.0.4)
Code Examples / Notes » xpath_new_contextdavid
WARNING FOR PHP5 USERS! (if you are having xpath problems) There seem to be several versions of the DOM library/extension arround, it would appear that the one in this page is for PHP4 only, while this is the one in PHP5: http://us2.php.net/manual/en/ref.dom.php See the DOMXPath class for xpath functions. augusto
Split easily XPath result into associative array: function xpath_parser($xml_file, $xpath_query) { $xml_file = realpath($xml_file); if (file_exists($xml_file)) { $doc = domxml_open_file($xml_file); $ctx = $doc->xpath_new_context(); if ($xpathObj = @$ctx->xpath_eval($xpath_query)) { $return = array(); foreach($xpathObj->nodeset as $risultato) { $tagName = $risultato->tagname(); $content = $risultato->get_content(); if (array_key_exists($tagName, $return)) { $return[$tagName][] = $content; }else { if (count($doc->get_elements_by_tagname($tagName)) > 1) { $return[$tagName] = array($content); }else { $return[$tagName] = $content; } } } }else { return("<b>Error :</b> Wrong XPath query"); } }else { return("<b>Errore :</b> File not exist or wrong filepath!"); } return $return; } usage: $xml_file = "./listaCD.xml"; $query = "/listacd/*"; echo "<pre>"; print_r(xpath_parser($xml_file, $query)); echo "</pre>"; webmaster
Should that not be placed as: DomDocument->xpath_new_context as it seems to be a method used from a DomDocument object. 27-may-2003 06:16
I found a nice function in XML_sql2xml. With it, you can get, easily, the result of a xpath expression. function getXpathValues(&$dom, $expr) { $xpth = $dom->xpath_new_context(); $xnode = xpath_eval($xpth,$expr); if (isset ($xnode->nodeset[0])) { $firstnode = $xnode->nodeset[0]; $children = $firstnode->children(); $value = $children[0]->content; return $value; } else return Null; } Usage : $dom = domxml_open_file('pear.rss'); echo $this->getXpathValues($dom, "//channel/title"); |
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DomAttribute->name DomAttribute->set_value DomAttribute->specified DomAttribute->value DomDocument->add_root DomDocument->create_attribute DomDocument->create_cdata_section DomDocument->create_comment DomDocument->create_element_ns DomDocument->create_element DomDocument->create_entity_reference DomDocument->create_processing_instruction DomDocument->create_text_node DomDocument->doctype DomDocument->document_element DomDocument->dump_file DomDocument->dump_mem DomDocument->get_element_by_id DomDocument->get_elements_by_tagname DomDocument->html_dump_mem DomDocument->xinclude DomDocumentType->entities() DomDocumentType->internal_subset() DomDocumentType->name() DomDocumentType->notations() DomDocumentType->public_id() DomDocumentType->system_id() DomElement->get_attribute_node() DomElement->get_attribute() DomElement->get_elements_by_tagname() DomElement->has_attribute() DomElement->remove_attribute() DomElement->set_attribute_node() DomElement->set_attribute() DomElement->tagname() DomNode->add_namespace DomNode->append_child DomNode->append_sibling DomNode->attributes DomNode->child_nodes DomNode->clone_node DomNode->dump_node DomNode->first_child DomNode->get_content DomNode->has_attributes DomNode->has_child_nodes DomNode->insert_before DomNode->is_blank_node DomNode->last_child DomNode->next_sibling DomNode->node_name DomNode->node_type DomNode->node_value DomNode->owner_document DomNode->parent_node DomNode->prefix DomNode->previous_sibling DomNode->remove_child DomNode->replace_child DomNode->replace_node DomNode->set_content DomNode->set_name DomNode->set_namespace DomNode->unlink_node DomProcessingInstruction->data DomProcessingInstruction->target DomXsltStylesheet->process() DomXsltStylesheet->result_dump_file() DomXsltStylesheet->result_dump_mem() domxml_new_doc domxml_open_file domxml_open_mem domxml_version domxml_xmltree domxml_xslt_stylesheet_doc domxml_xslt_stylesheet_file domxml_xslt_stylesheet domxml_xslt_version xpath_eval_expression xpath_eval xpath_new_context xpath_register_ns_auto xpath_register_ns xptr_eval xptr_new_context |
