<?php #Conexion con PDO



    $conexion =new PDO("oci:dbname".$tns,$user,$pass);
    $conexion->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);

class ConexionPDO extends PDO{
    #Llave conexión a Oracle, comentar si se quiere conectar a otra BD
    var $tns="(DESCRIPTION=(ADDRESS_List=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=DB1)))" ;
    var $user = "";
    var $pass = "";

    public function __construct(array $options = null) {
        parent::__construct($this->tns, $this->user, $this->pass, $options);

    }

}