simplexml_load_file使用方法

06-12 | 夜光 | PHP笔记

假如我们需要对一个.xml文件进行处理,取出我们需要的数据,我们可以使用simplexml_load_file函数取出这个.xml文件中的数据,并将其转换成对象。

假如有一个“iciba.xml”文件,其内容如下:

<?xml version="1.0" encoding="UTF-8"?>
<dict num="219" id="219" name="219">
	<key>天空</key>
	<pos></pos>
	<acceptation>Array;Array;</acceptation>
	<sent>
		<orig>The church tower stood against the sky like a finger pointing towards heaven.</orig>
		<trans>教堂的尖塔在天空的映衬下宛如指向天空的手指。</trans>
	</sent>
	<sent>
		<orig>A balloon floated across the sky.</orig>
		<trans>气球飘过天空。</trans>
	</sent>
	<sent>
		<orig>A bolt of lightning lit up the sky.</orig>
		<trans>(一道)闪电照亮了天空。</trans>
	</sent>
	<sent>
		<orig>A bright moving object appeared in the sky at sunset.</orig>
		<trans>日落西山时,天空出现了一个移动的发亮物体。</trans>
	</sent>
	<sent>
		<orig>A bright rainbow arched above.</orig>
		<trans>一弯明亮的彩虹悬挂在天空。</trans>
	</sent>
</dict>

在PHP语言中我们可以用以下方法取得我们想要的值:

<?php
$xmldata = simplexml_load_file("iciba.xml"); 
header("Content-Type: text/html; charset=UTF-8");
print_r($xmldata); //第一部分
$listcount = count($xmldata->sent);
for($i=0;$i<$listcount;$i++){ //第二部分
	$dictlist = $xmldata->sent[$i];
	echo "<br />例句:".$dictlist->orig;
	echo "<br />翻译:".$dictlist->trans;
}
?>

“第一部分”将输出:

SimpleXMLElement Object
(
    [@attributes] => Array
        (
            [num] => 219
            [id] => 219
            [name] => 219
        )
    [key] => 天空
    [pos] => SimpleXMLElement Object
        (
        )
    [acceptation] => Array;Array;
    [sent] => Array
        (
            [0] => SimpleXMLElement Object
                (
                    [orig] => The church tower stood against the sky like a finger pointing towards heaven.
                    [trans] => 教堂的尖塔在天空的映衬下宛如指向天空的手指。
                )
            [1] => SimpleXMLElement Object
                (
                    [orig] => A balloon floated across the sky.
                    [trans] => 气球飘过天空。
                )
            [2] => SimpleXMLElement Object
                (
                    [orig] => A bolt of lightning lit up the sky.
                    [trans] => (一道)闪电照亮了天空。
                )
            [3] => SimpleXMLElement Object
                (
                    [orig] => A bright moving object appeared in the sky at sunset.
                    [trans] => 日落西山时,天空出现了一个移动的发亮物体。
                )
            [4] => SimpleXMLElement Object
                (
                    [orig] => A bright rainbow arched above.
                    [trans] => 一弯明亮的彩虹悬挂在天空。
                )
        )
)

“第二部分”将输出:

例句:The church tower stood against the sky like a finger pointing towards heaven.
翻译:教堂的尖塔在天空的映衬下宛如指向天空的手指。
例句:A balloon floated across the sky.
翻译:气球飘过天空。
例句:A bolt of lightning lit up the sky.
翻译:(一道)闪电照亮了天空。
例句:A bright moving object appeared in the sky at sunset.
翻译:日落西山时,天空出现了一个移动的发亮物体。
例句:A bright rainbow arched above.
翻译:一弯明亮的彩虹悬挂在天空。
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