如何使用 php 连接到 Oracle 数据库？

Question

I am currently working on a website that connects to an Oracle Database. I have two php files, one for connection with the database and the other is the html structure itself.

Connect.php:

<?php

$servername = "//////";
$username = "/////";
$password = "/////";

$conn = oci_connect($servername, $username, $password);

 if ($conn->connect_error) {
   die("Connection failed: " . $conn->connect_error);
 }
 echo "Connected!";

?>

I have been having a very hard time connecting to the database. I followed the Oracle tutorial and edited the oci8.connection_class = MYPHPAPP in php.ini, but everytime I run the Connect.php, I get the HTTP Error 500. Did I miss anything? What should I do?

Edit 1: I used display_errors and the error I am getting is Call to undefined function oci_connect()

Edit 2: I tried everything at this point to make the oci_connect work. I downloaded the oracle client and made it an environmental variable but oci_connect is still not working. I would really appreciate if any mac users could help me with this.

Answer 1

Download the appropriate oracle client to your machine, extract it and copy and paste in your system drive.

Add the path of your oracle client to environment variables.

Then you need to enable php_oci8_12c extension using php.ini or GUI if available. Open php file and write the following code:

function connect(){
     $dburl = "(DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = your_host)(PORT = 1521))
     (CONNECT_DATA =
       (SERVER = DEDICATED)
       (SERVICE_NAME = your_db_sid)
     )
     )";
     //db charset is optional
     $db_charset = 'WE8MSWIN1252'; //your db charset goes here
     try {
         return oci_connect("username", "password",$dburl,$db_charset);
       } 
       catch (Exception $e) {
         die($e);
       }
   }

This code is work fine on my windows 10 machine, php 7.1.9 and oracle 12c.

Answer 2

Forth link in google after searching for your exact questions brought up the following link: http://me2learn.wordpress.com/2008/10/18/connect-php-with-oracle-database/

<?php
    $db = "(DESCRIPTION=(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.34)(PORT = 1521)))(CONNECT_DATA=(SID=orcl)))" ;

    if($c = OCILogon("system", "your database password", $db))
    {
        echo "Successfully connected to Oracle.\n";
        OCILogoff($c);
    }
    else
    {
        $err = OCIError();
        echo "Connection failed." . $err[text];
    }
?>