php DOMDocument 递归 格式化缩进HTML文档
<span>function</span> format(\DOMNode <span>$node</span>, <span>$treeIndex</span> = 0<span>){ </span><span>//</span><span>不格式化的标签</span><span>if</span> (<span>in_array</span>(<span>$node</span>->nodeName, <span>array</span>("title", "p", "span"<span>))) </span><span>return</span><span>; </span><span>if</span> (<span>$node</span>-><span>hasChildNodes()) { </span><span>$treeIndex</span>++<span>; </span><span>$tabStart</span> = "\r\n" . <span>str_repeat</span>(" ", <span>$treeIndex</span><span>); </span><span>$tabEnd</span> = "\r\n" . <span>str_repeat</span>(" ", <span>$treeIndex</span> - 1<span>); </span><span>$i</span> = 0<span>; </span><span>while</span> (<span>$childNode</span> = <span>$node</span>->childNodes->item(<span>$i</span>++<span>)) { </span><span>//</span><span>去除空的text node</span><span>if</span> (<span>$childNode</span>->nodeType == XML_TEXT_NODE and <span>preg_match</span>('#^\s*$#', <span>$childNode</span>-><span>nodeValue)) { </span><span>$node</span>->removeChild(<span>$childNode</span><span>); </span><span>$i</span>--<span>; </span><span>continue</span><span>; } </span><span>$node</span>->insertBefore(<span>$node</span>->ownerDocument->createTextNode(<span>$tabStart</span>), <span>$childNode</span><span>); </span><span>$i</span>++<span>; format(</span><span>$childNode</span>, <span>$treeIndex</span><span>); }; </span><span>$node</span>->appendChild(<span>$node</span>->ownerDocument->createTextNode(<span>$tabEnd</span><span>)); }}</span><span>$html</span> = '<meta charset="utf-8"><title></title><body>'<span>;</span><span>$doc</span> = <span>new</span><span> \DOMDocument();</span><span>//</span><span>$doc->formatOutput = true; //不知道是不是我的理解问题，这个选项格式化出来的并不完美</span><span>$doc</span>->loadHTML(<span>$html</span><span>);format(</span><span>$doc</span>-><span>documentEleme<p style="color:transparent">本文来源gao!%daima.com搞$代*!码$网3</p><strong>搞代gaodaima码</strong>nt);</span><span>echo</span><span>$doc</span>->saveHTML();
以上就介绍了php DOMDocument 递归 格式化缩进HTML文档，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。
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