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I am running a PHP application here http://www.france-hotel.com I am able to run some PHP script from my computer to access a MYSQL database I have setup a security group to allow access to port 3306 so from my local computer it is working, I can access my mysql database.
When i do the same thing on my website, i dont have any answer and I cant view any error message, the page is blanked. My program stop just after the command

$base = mysql_connect ($DB_SERVER, $DB_USER, $DB_PASSWORD);

The only thing is see is coming from my application dashboard showing this message :

Environment health has transitioned from Ok to Warning. 100.0 % of the requests are failing with HTTP 5xx.

do you have any idea or experience about this problem ?
L

ɐlǝx
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Ludovic Philippo
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    First step; enable errors to see what the issue is use; error_reporting(E_ALL);ini_set('display_errors', 1); then you should have a bit more information to work with – RedCrusador Jul 03 '17 at 08:38
  • Every time you use [the `mysql_`](http://stackoverflow.com/questions/12859942/why-shouldnt-i-use-mysql-functions-in-php) database extension in new code **[this happens](https://media.giphy.com/media/kg9t6wEQKV7u8/giphy.gif)** it is deprecated and has been for years and is gone for ever in PHP7. If you are just learning PHP, spend your energies learning the `PDO` or `mysqli` database extensions and prepared statements. [Start here](http://php.net/manual/en/book.pdo.php) – RiggsFolly Jul 03 '17 at 08:39
  • What version of PHP is running on your website? – RiggsFolly Jul 03 '17 at 08:40
  • Also Please read [What topics can I ask about](http://stackoverflow.com/help/on-topic) and [How to ask a good question](http://stackoverflow.com/help/how-to-ask) and [the perfect question](http://codeblog.jonskeet.uk/2010/08/29/writing-the-perfect-question/) and how to create a [Minimal, Complete and Verifiable Example](http://stackoverflow.com/help/mcve) – RiggsFolly Jul 03 '17 at 08:41

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