php XML操作小tip

两个方便的DOMDocument小函数

1. 取唯一节点的值

function getSingleValue($doc,$node){ return $doc->getElementsByTagName($node)->item(0)->nodeValue; }

2. 创建孩子节点

function createChild($doc,$father,$childname,$value="",$cdata=false){ $c = $doc->createElement($childname); if($value){ if(!$cdata) $text = $doc->createTextNode($value); else $text = $doc->createCDATASection($value); $c->appendChild($text); } $father->appendChild($c); return $c; }