Fastest way to test a server for sqlite via a PHP file?

Question

I'm not sure if my server has sqlite on it, so I want to use a PDO object to test and see if the server supports sqlite. I tried:

<?php
echo `sqlite3 -v`;

got the following error: Warning: shell_exec() has been disabled for security reasons

Answer 1

You could just use function_exists() to check if sqlite functions are present, like this:

if (function_exists('sqlite_open')) {
   echo 'Sqlite PHP extension loaded';
} 

For SQLite3 the former won't work, so use this instead ^{(courtesy of Prid's comment)}:

if (class_exists('SQLite3')) {
   echo 'SQLite3 extension loaded';
}

Answer 2

Or you can simply use :

if (extension_loaded('sqlite3')) {
    // Do things
}

http://php.net/manual/en/function.extension-loaded.php