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<?php class SqlitePlatform { public static function udfSqrt($value) { return sqrt($value); } } $userDefinedFunctions = [ 'sqrt' => ['callback' => [SqlitePlatform::class, 'udfSqrt'], 'numArgs' => 1], ]; $dsn = "sqlite::memory:"; try { $pdo = new PDO($dsn); foreach ($userDefinedFunctions as $fn => $data) { $pdo->sqliteCreateFunction($fn, $data['callback'], $data['numArgs']); } \var_dump($pdo); } catch (PDOException $e) { \var_dump($e); }
Output for git.master, git.master_jit, rfc.property-hooks
object(PDO)#1 (0) { }

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