PHP oracle oci configuration test code.

oracle_conn.php

<?php
$user = 'username';
$passwd = 'password';

// oracle ip or domain
$srv = 'oracle.host';
$sid = 'SID';
$port = 1521;

$conn = oci_connect($user, $passwd, "${srv}:${port}/${sid}", 'AL32UTF8');
if (!$conn) {
    $e = oci_error();
    die($e['message'] . "\n");
}  
$stid = oci_parse($conn, 'SELECT sysdate FROM dual');
if (!oci_execute($stid)) {
    $e = oci_error($stid);
    die($e['message'] . "\n");
}
while ($row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS)) {
       var_dump($row) . "\n";
}
oci_close($conn);