<?php
//echo "hello";exit;
    ini_set('display_errors', 1);
    ini_set('display_startup_errors', 1);
    error_reporting(E_ALL);
   /* $db = "(DESCRIPTION=(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 172.22.22.136)(PORT = 1521)))(CONNECT_DATA=(Service_Name=crmdb)))" ;
    if($c = OCILogon("CRMDB", "CRM_321", $db))
    {
        echo "Successfully connected to Oracle.\n";
        OCILogoff($c);
    }
    else
    {
        $err = OCIError();
        echo "Connection failed." . $err[text];
    }/*
    /* $tns = "(DESCRIPTION =
        (CONNECT_TIMEOUT=3)(RETRY_COUNT=0)
        (ADDRESS_LIST =
          (ADDRESS = (PROTOCOL = TCP)(HOST = 172.22.22.136)(PORT = 1521))
        )
        (CONNECT_DATA =
          (SERVICE_NAME = CRMDB)
        )
      )";
    $tns = "172.22.22.136:1521/CRMDB";
    $conn = oci_connect('CRMDB', 'CRM_321', $tns);
        if (!$conn) {
            $e = oci_error();
            throw new Exception($e['message']);
        }
        echo "Connection OK\n";*/

    // Create connection to Oracle
  /*  $conn = oci_connect("crmdb", "CRM_321", "//172.22.22.136/crmdb");
    if (!$conn) {
       $m = oci_error();
       echo $m['message'], "\n";
       exit;
    }
    else {
       print "Connected to Oracle!";
    }
    // Close the Oracle connection
    oci_close($conn);*/

 /*   $user = "CRMDB"; 
    $password = "CRM_321";
    $ODBCConnection = odbc_connect("Driver={Devart ODBC driver for Oracle};Direct=true;Host=172.22.22.136;Port=1521;Service Name=crmdb;User ID=myuserid;password=mypassword", $user, $password);
    if($ODBCConnection)
    {
        echo 'connection';
    }else{
        echo "failed";
    }*/


/*$conn = @oci_connect('CRMDB', 'CRM_321', '172.22.22.136/crmdb');

if (!$conn) {
   die("Database Connection Error");
}else{
    echo "connected";
}*/
/*
foreach(PDO::getAvailableDrivers() as $driver)
    echo $driver, '\n';
*/
/*try {
    $user='CRMDB'; // Enter your DB User Name.
    $pass='CRM_321'; // Enter your DB Password.
    $dataBaseName='crmdb'; // Enter your Database Name.
    $dbh = new PDO('oci:dbname='.$dataBaseName.'charset=UTF-8', $user,$pass);
    echo "Connection Successful";
} catch (PDOException $e) {
    print "Error!: " . $e->getMessage() . " ";
    die();
}*/
 $conn=oci_connect("username","password","localhost/servicename"); If (!$conn) echo 'Failed to connect to Oracle'; else echo 'Succesfully connected with Oracle DB'; oci_close($conn);
?>