Flex codes done by nsDevaraj

This post have three significant solutions:

   1. ArrayCollection output into XML
   2. Converting any MySQL DB values into XML using PHP
   3. Simple Login form using PHP and MXML

The below php code converts db output as xml dbtoxml.php

// <?php
// define(“HOSTNAME”,”localhost”);
// define(“USERNAME”,”root”);
// define(“PASSWORD”,”");
// define(“DB_NAME”,”users”);
// define(“TABLE_NAME”,”users”);

// mysql_connect(HOSTNAME, USERNAME, PASSWORD);
// mysql_select_db(DB_NAME);

// $result = mysql_query(“SELECT * FROM “.TABLE_NAME);//Get the number of rows
// $num_row = mysql_num_rows($result);
// echo ‘<?xml version=”1.0″ encoding=”iso-8859-1″?>’;//Start the output of XML
// echo “<data>”;
// echo ‘<num>’ .$num_row. ‘</num>’;
// if (!$result) {
// die(‘Query failed: ‘ . mysql_error());
// }
// /* get column metadata – column name */
//  $i = 0;
//  while ($i < mysql_num_fields($result)) {
//     $meta = mysql_fetch_field($result, $i);
//   $ColumnNames[] = $meta->name;  //place col name into array
//   $i++;
//  }
// $specialchar = array(“&”,”>”,”<”);  //special characters
// $specialcharReplace = array(“&amp;”,”&gt;”,”&lt;”); //replacement
// /* query & convert table data and column names to xml*/

// $w = 0;
// while ($line = mysql_fetch_array($result, MYSQL_ASSOC)) {
// echo “<row>”;
// foreach ($line as $col_value){
//  echo ‘<’.$ColumnNames[$w].’>’;
//  $col_value_strip = str_replace($specialchar, $specialcharReplace, $col_value);
//  echo $col_value_strip;
//  echo ‘</’.$ColumnNames[$w].’>’;
//  if($w == ($i – 1)) { $w = 0; }
//  else { $w++; }
//    }
// echo “</row>”;
// }
// echo “</data>”;
// mysql_free_result($result);

// ?>

The below mxml file converts php ArrayCollection output into XML dbconnect.mxml

<?xml version=”1.0″ encoding=”utf-8″?>
<mx:Application xmlns:mx=”http://www.adobe.com/2006/mxml” layout=”horizontal” creationComplete=”dbconnect.send();”>
<mx:Script>    
<![CDATA[    
import mx.rpc.events.ResultEvent;
import mx.controls.Alert;
import mx.collections.ArrayCollection;
public var XMLNodeObjXMLList:XMLList;
[Bindable] public var loggedIn:Boolean;

public function checkLogin():void {
    var userName:String = userId.text;
    var passWord:String = pwd.text;
    var passList:XMLList = XMLNodeObjXMLList.record.(user == userName);
    loggedIn  = String(passList.pass) == passWord;
    loggedIn ? Alert.show(‘Logged In’) : Alert.show(‘Try Again’);
}
private function resultHandler(e:ResultEvent):void {
    XMLNodeObjXMLList = ObjToXmlList(e.result.data.row);
}
private function ObjToXmlList(XMLArrCol:ArrayCollection):XMLList {
    var XMLStr:String = “<?xml version=\”1.0\” encoding=\”UTF-8\”?>\n<data>”;
    for each(var XMLNodeObj:Object in XMLArrCol) {
     XMLStr += “<record>”;
     XMLStr += “<user>” + XMLNodeObj.user + “</user>”;
     XMLStr += “<pass>” + XMLNodeObj.pass + “</pass>”;
     XMLStr += “</record>”;
    }
    XMLStr += “\n</data>”;
    return new XMLList(XMLStr);
}
]]>
</mx:Script>
<mx:HTTPService id=”dbconnect” showBusyCursor=”true” url=”http://localhost/dbtoxml.php” useProxy=”false” result=”resultHandler(event)” />
<mx:Form visible=”{!loggedIn}” includeInLayout=”{!loggedIn}”>
<mx:FormItem label=”Username : “> <mx:TextInput id=”userId” text=”deva” />
</mx:FormItem>
<mx:FormItem label=”Password : “>
<mx:TextInput id=”pwd” displayAsPassword=”true” text=”deva” />
</mx:FormItem>
<mx:FormItem>
<mx:Button label=”Login” click=”checkLogin()”/>
</mx:FormItem> </mx:Form>
<mx:HBox visible=”{loggedIn}” includeInLayout=”{loggedIn}”>
<mx:Label text=”Logged In”/>
</mx:HBox>