nsssim

<?php
//round 1
$json_file = file_get_contents('http://finance.yahoo.com/webservice/v1/symbols/allcurrencies/quote?format=json');
$data = json_decode($json_file);
$i=0;
var_dump($json_file);

echo "~~~~~~~~~~~~~~~~~~~~~~~~~~<br/>";
//round 2
$xml_file = simplexml_load_file('http://aiweb.cs.washington.edu/research/projects/xmltk/xmldata/data/mondial/mondial-3.0.xml');

nsssim

<?php
//controller
//-------------------------------------
 	function index()
	{
		
		$this->load->model('list_four_mdl'); // load the file welcome_mdl.php
		$data1['records'] = $this->list_four_mdl->get_fourn(); // 
		$data2['records2'] = $this->list_four_mdl->get_enga(); // 
        $data3['xxx']=$data1;

nsssim

SELECT DISTINCT TABLE_NAME 
    FROM INFORMATION_SCHEMA.COLUMNS
    WHERE COLUMN_NAME IN ('xxxxx','yyyyyy')
        AND TABLE_SCHEMA='database_name';

//will find xxxxx and yyyyyy in the databae