《PHP教程：php中simplexml_load_file函數用法實例》要點：
本文介紹了PHP教程：php中simplexml_load_file函數用法實例，希望對您有用。如果有疑問，可以聯系我們。
本文實例講述了php中simplexml_load_file函數用法.分享給大家供大家參考.具體用法分析如下：PHP學習
在php中simplexml_load_file() 函數把 XML 文檔載入對象中之后我們就可以利用由此函數返回的對象進行相關的操作了,下面我們看幾個測試實例.PHP學習
例子,XML文件代碼如下:
PHP學習
代碼如下:
<?xml version="1.0" encoding="ISO-8859-1"?>?
<note>
<to>George</to>
<from>John</from>
<heading>Reminder</heading>
<body>Don't forget the meeting!</body>
</note>
PHP 代碼如下:
代碼如下:
<?php?
if (file_exists('test.xml'))?
{?
? $xml = simplexml_load_file('test.xml');?
? var_dump($xml);?
}?
else?
{?
? exit('Error.');?
}?
?>
?
運行輸出結果如下：?
代碼如下:
object(SimpleXMLElement)#1 (4) {
? ["to"]=>
? string(6) "George"
? ["from"]=>
? string(4) "John"
? ["heading"]=>
? string(8) "Reminder"
? ["body"]=>
? string(25) "Don't forget the meeting!"
}
假如有一個“iciba.xml”文件,其內容如下:
代碼如下:
<?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襯下宛如指向天空的手指.</trans>?
?</sent>?
?<sent>?
? <orig>A balloon floated across the sky.</orig>?
? <trans>氣球飄過天空.</trans>?
?</sent>?
?<sent>?
? <orig>A bolt of lightning lit up the sky.</orig>?
? <trans>(一道)閃電照亮了天空.</trans>?
?</sent>?
?<sent>?
? <orig>A bright moving object appeared in the sky at sunset.</orig>?
? <trans>日落西山時,天空出現了一個移動的發亮物體.</trans>?
?</sent>?
?<sent>?
? <orig>A bright rainbow arched above.</orig>?
? <trans>一彎明亮的彩虹懸掛在天空.</trans>?
?</sent>?
</dict>
在PHP語言中我們可以用以下辦法取得我們想要的值：?
代碼如下:
<?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：".$dictlist->orig;?
?echo "<br />翻譯：".$dictlist->trans;?
}?
?>
“第一部分”將輸出：?
PHP學習
代碼如下:
SimpleXMLElement Object
(
??? [@attributes] => Array
??????? (
??????????? [num] => 219
??????????? [id] => 219
??????????? [name] => 219
??????? )
??? [key] => 天空
??? [pos] => SimpleXMLElement Object
??????? (
??????? )PHP學習
??? [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襯下宛如指向天空的手指.
??????????????? )PHP學習
??????????? [1] => SimpleXMLElement Object
??????????????? (
??????????????????? [orig] => A balloon floated across the sky.
??????????????????? [trans] => 氣球飄過天空.
??????????????? )PHP學習
??????????? [2] => SimpleXMLElement Object
??????????????? (
??????????????????? [orig] => A bolt of lightning lit up the sky.
??????????????????? [trans] => (一道)閃電照亮了天空.
??????????????? )PHP學習
??????????? [3] => SimpleXMLElement Object
??????????????? (
??????????????????? [orig] => A bright moving object appeared in the sky at sunset.
??????????????????? [trans] => 日落西山時,天空出現了一個移動的發亮物體.
??????????????? )PHP學習
??????????? [4] => SimpleXMLElement Object
??????????????? (
??????????????????? [orig] => A bright rainbow arched above.
??????????????????? [trans] => 一彎明亮的彩虹懸掛在天空.
??????????????? )PHP學習
??????? )PHP學習
)
PHP學習
“第二部分”將輸出：?
PHP學習
代碼如下:
例句：The church tower stood against the sky like a finger pointing towards heaven.
翻譯：教堂的尖塔在天空的映襯下宛如指向天空的手指.
例句：A balloon floated across the sky.
翻譯：氣球飄過天空.
例句：A bolt of lightning lit up the sky.
翻譯：(一道)閃電照亮了天空.
例句：A bright moving object appeared in the sky at sunset.
翻譯：日落西山時,天空出現了一個移動的發亮物體.
例句：A bright rainbow arched above.
翻譯：一彎明亮的彩虹懸掛在天空.
例子,更深入的一個遍歷輸出生成表格,代碼如下:
PHP學習
代碼如下:
eader("content-type:text/html; charset=utf-8"); //設置編碼?
$xml = simplexml_load_file('a.xml'); //載入xml文件 $lists和xml文件的根節點是一樣的?
echo $xml->company."<br>";?
echo $xml->town."<br>id:";?
echo $xml->town['id']."<br>parent:";?
echo $xml->town['parent']."<br>";?
?
echo "<br>循環讀取:<br>";?
foreach($xml->user as $users){ //有多個user,取得的是數組,循環輸出?
??? echo "-------------------<br>";?
??? echo "姓名:".$users->name."<br>";?
??? echo "編號:".$users->age."<br>";?
??? echo "性別:".$users->age['sex']."<br>";?
??? echo "序號:".$users->height."<br>";?
}
?
echo "<br>循環讀取:<br>";?
foreach($xml->town as $towns){ //有多個user,取得的是數組,循環輸出?
??? echo "-------------------<br>";?
??? echo "id:".$towns['id']."<br>";?
??? echo "歸屬:".$towns['parent']."<br>";?
??? echo "地區:".$towns."<br>";?
}
希望本文所述對大家的PHP程序設計有所贊助.PHP學習
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