Home > Article > Backend Development > Introduction to how PHP determines whether a str string is XML format data
这篇文章主要介绍了php判断str字符串是否是xml格式数据的方法,结合实例形式较为详细的分析了php采用自定义函数针对xml格式数据进行验证的相关操作技巧,需要的朋友可以参考下
本文实例讲述了php判断str字符串是否是xml格式数据的方法。分享给大家供大家参考,具体如下:
<?php //自定义xml验证函数xml_parser() function xml_parser($str){ $xml_parser = xml_parser_create(); if(!xml_parse($xml_parser,$str,true)){ xml_parser_free($xml_parser); return false; }else { return (json_decode(json_encode(simplexml_load_string($str)),true)); } } //应用示例: $xmlstr=<<<ETO <?xml version="1.0" encoding="UTF-8"?> <books> <book> <author>Jack Herrington</author> <title>PHP Hacks</title> <publisher>O'Reilly</publisher> </book> <book> <author>Jack Herrington</author> <title>Podcasting Hacks</title> <publisher>O'Reilly</publisher> </book> <book> <author>XML数据</author> <title>脚本之家</title> <publisher>tools.jb51.net</publisher> </book> </books> ETO; $jsonstr='{ "tools": [ { "name":"css format" , "site":"http://tools.jb51.net/code/css" }, { "name":"json format" , "site":"http://tools.jb51.net/code/json" }, { "name":"pwd check" , "site":"http://tools.jb51.net/password/my_password_safe" } ] }'; if(xml_parser($xmlstr)){ echo "\$xmlstr是xml格式数据"; }else{ echo "\$xmlstr不是xml格式数据"; } echo "<br/>"; if(xml_parser($jsonstr)){ echo "\$jsonstr是xml格式数据"; }else{ echo "\$jsonstr不是xml格式数据"; } ?>
运行结果:
$xmlstr是xml格式数据 $jsonstr不是xml格式数据
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