PHP study notes: read xml files with php

　 XML has been gradually replaced by JSON. The APIs used now all use JSON, but some old websites still use XML.

　The default xml file here is: address.xml, which is stored in the same level directory as the read php file. The xml content is as follows:

　

<?xml version="1.0" encoding="utf-8"?>
<note>
    <name>简庆旺</name>
    <address>福建省漳州市南靖县梅林镇官洋村</address>
    <tel>17095921320</tel>
    <code>363609</code>
    <school>
        <highschool>
            <name>永定一中</name>
            <address>福建省龙岩市永定区91路</address>
        </highschool>
        <university>
            <name>吉首大学</name>
            <address>湖南省吉首市人民南路120号</address>
        </university>
    </school>

</note>

xml reading method 1:

<span style="color: #000000;">php

</span><span style="color: #800080;">$xml</span> = <span style="color: #008080;">simplexml_load_file</span>('address.xml'<span style="color: #000000;">);
</span><span style="color: #008000;">//</span><span style="color: #008000;">输出下，内容是个对象</span>
<span style="color: #008080;">var_dump</span>(<span style="color: #800080;">$xml</span><span style="color: #000000;">);
</span><span style="color: #0000ff;">echo</span> ("<br>"<span style="color: #000000;">);
</span><span style="color: #008000;">//</span><span style="color: #008000;">读取到简庆旺</span>
<span style="color: #0000ff;">echo</span> <span style="color: #800080;">$xml</span>-><span style="color: #000000;">name;
</span><span style="color: #0000ff;">echo</span> ("<br>"<span style="color: #000000;">);
</span><span style="color: #008000;">//</span><span style="color: #008000;">读取到永定一中</span>
<span style="color: #0000ff;">echo</span> <span style="color: #800080;">$xml</span>->school->highschool-><span style="color: #000000;">name;
</span>?>

　xml reading method 2: