3v4l.org

run code in 300+ PHP versions simultaneously

@ 2019-06-02T15:39:59Z

<?php

class Database
{
    protected static $instance;
    protected $pdo;
    
    protected function __construct()
    {
        static $opt = [
            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
        ];
        $this->pdo = new PDO('sqlite::memory:', null, null, $opt);
    }
    
    public static function instance()
    {
        if (null === self::$instance) {
            self::$instance = new self;
        }

        return self::$instance;
    }
    
    public function run($sql, $args = [])
    {
        if (!$args) {
            return $this->query($sql);
        }
        $stmt = $this->prepare($sql);
        $stmt->execute($args);
       
        return $stmt;
    }
    
    public function __call($method, $args)
    {
        if (is_callable([$this->pdo, $method])) {
            //php 5.6+ variadic optimization (aka splat operator)
            return $this->pdo->$method(...$args);
            //PHP <= 5.5
            //return call_user_func_array(array($this->pdo, $method), $args);
        }
        throw new \BadMethodCallException(sprintf('Unknown method PDO::%s called!', $method));
    }
}


//RunTime code

if (PHP_VERSION_ID >= 70100) {
    try {
       $db = Database::instance();
       var_dump($db->run('SELECT ?', ['foo', 'bar'])->fetch());
    } catch(\PDOException $e) {
       if ('execute' === $e->getTrace()[0]['function']) {
           echo 'PDO::execute() failed';
       }
       //Handle the exception
    }
} else {
    try {
       $db = Database::instance();
       var_dump($db->run('SELECT ?', ['foo', 'bar'])->fetch());
    } catch(\PDOException $e) {
       if ('execute' === $e->getTrace()[0]['function']) {
           echo 'PDO::execute() failed'; 
       }
       //Handle the exception
    }
}

Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.28, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: PDO::execute() failed
Output for 5.5.0 - 5.5.38: Parse error: syntax error, unexpected '.' in /in/fDnBI on line 40
Process exited with code 255.
Output for 5.4.0 - 5.4.45: Parse error: syntax error, unexpected '.', expecting ')' in /in/fDnBI on line 40
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/fDnBI on line 10
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/fDnBI on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/fDnBI on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/fDnBI on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/fDnBI on line 5
Process exited with code 255.

preferences:dark modelive preview

318.07 ms | 401 KiB | 433 Q