สอบถามเกี่ยวกับการค่าจาก File Xml ครับ เป็นการอ่านจากค่าชื่อของ Note ครับ

<?php
$string = <<<XML
<workstations>
  <workstation name="Demo A">
	  <ip>192.168.1.1</ip>
	  <sfdcmode>SFDC3</sfdcmode>
	  <port>18000</port>
	  <dc>191</dc>
  </workstation>
  <workstation name="Demo B">
	  <ip>192.168.1.2</ip>
	  <sfdcmode>SFDC3</sfdcmode>
	  <port>18000</port>
	  <dc>191</dc>
  </workstation>
</workstations>
XML;

$xml = simplexml_load_string($string);
foreach($xml->children() as $node){
	$arr = $node->attributes();
	echo $arr['name']."<br>";
}
?>

<workstations>

  <workstation name="Demo A">
  <ip>192.168.1.1</ip>
  <sfdcmode>SFDC3</sfdcmode>
  <port>18000</port>
  <dc>191</dc>
  </workstation>
  
  <workstation name="Demo B">
  <ip>192.168.1.2</ip>
  <sfdcmode>SFDC3</sfdcmode>
  <port>18000</port>
  <dc>191</dc>
  </workstation>

</workstations>

	<table>
		<tr>
			<th>Name</th>
			<th>IP</th>
			<th>SFDC Mode</th>
			<th>Port</th>
			<th>DC</th>
		</tr>
<? 
  $objDOM = new DOMDocument(); 
  $objDOM->load("a.xml"); 
 
  $note = $objDOM->getElementsByTagName("workstation"); 

  foreach( $note as $value ) 
  {
    $strWorkstation = $note->item(0)->getName();
    $ip = $value->getElementsByTagName("ip"); 
    $strIP  = $ip->item(0)->nodeValue; 
    $sfdcmode = $value->getElementsByTagName("sfdcmode"); 
    $strSfdcmode  = $sfdcmode->item(0)->nodeValue; 
    $port = $value->getElementsByTagName("port"); 
    $strPort  = $port->item(0)->nodeValue;
    $dc = $value->getElementsByTagName("dc"); 
    $strDc  = $dc->item(0)->nodeValue;
?>
	<tr>
		<td><? echo $strWorkstation; ?></td>
		<td><? echo $strIP; ?></td>
		<td><? echo $strSfdcmode; ?></td>
		<td><? echo $strPort; ?></td>
		<td><? echo $strDc; ?></td>
	</tr>
		
	
<?  
  } 
?>

	
	</table>

<?php

$xml = simplexml_load_string("a.xml");

$i=0;
foreach($xml->children() as $node){
	$arr = $node->attributes();
	echo $arr['name']."<br>";
	foreach($xml->workstation[$i]->children() as $child)
	{
		echo $child->getName(). ": " . $child . "<br />";
	}
$i++;
}

?>

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Warning: simplexml_load_string() [function.simplexml-load-string]: a.xml in C:\AppServ\www\testxml\index1.php on line 3

Warning: simplexml_load_string() [function.simplexml-load-string]: ^ in C:\AppServ\www\testxml\index1.php on line 3

Fatal error: Call to a member function children() on a non-object in C:\AppServ\www\testxml\index1.php on line 5

$xml = simplexml_load_file("namefile.xml")

  <workstation name="Demo A">
  <ip>192.168.1.1</ip>
  <sfdcmode>SFDC3</sfdcmode>
  <port>18000</port>
  <dc>191</dc>
  </workstation>

$sxe = new SimpleXMLElement($xml->asXML()); //In this line it create a SimpleXMLElement object with the source of the XML file. 
//The following lines will add a new child and others child inside the previous child created. 
$workstation = $sxe->addChild("workstation"); 
$workstation->addAttribute("name","test");
$workstation->addChild("ip", "ip"); 
$workstation->addChild("sfdcmode", "sfdcmode"); 
$workstation->addChild("port", "port"); 
$workstation->addChild("dc", "dc"); 
//This next line will overwrite the original XML file with new data added 
$sxe->asXML("xml01.xml");