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# DomElement->has_attribute

(no version information, might be only in CVS)

DomElement->has_attribute -- Checks to see if an attribute exists in the current node

## 说明

bool DomElement->has_attribute ( string name )

This functions checks to see if an attribute named name exists in the current node.

例子 1. Testing the existence of an attribute

`<?php include("example.inc"); if (!$dom = domxml_open_mem($xmlstr)) { echo "Error while parsing the document\n"; exit; } $root = $dom->document_element(); $buffer = '<html'; if ($root->has_attribute('language')) { $buffer .= 'lang="' . $root->get_attribute('language') . '"'; } $buffer .= '>'; ?>`

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DomElement->get_elements_by_tagname | 上一级 | DomElement->remove_attribute