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php pdo query() throws error AND exception when mysql server has gone away
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| PHP Warning: PDO::query(): MySQL server has gone away in C:\Users\Juris\Desktop\test\test.php on line 23 | |
| Warning: PDO::query(): MySQL server has gone away in C:\Users\Juris\Desktop\test\test.php on line 23 | |
| PHP Warning: PDO::query(): Error reading result set's header in C:\Users\Juris\Desktop\test\test.php on line | |
| 23 | |
| Warning: PDO::query(): Error reading result set's header in C:\Users\Juris\Desktop\test\test.php on line 23 | |
| Exception: connection problem. Message: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away |
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| <?php | |
| try | |
| { | |
| $connection = new PDO( | |
| 'mysql:dbname=test;host=localhost;port=3306;', | |
| 'username', | |
| 'password', | |
| [ | |
| PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, | |
| ] | |
| ); | |
| } | |
| catch (PDOException $e) | |
| { | |
| echo 'Failed to initialize database connection. Message: ', $e->getMessage(), PHP_EOL; | |
| die(); | |
| } | |
| try | |
| { | |
| $connection->exec('SET SESSION wait_timeout = 1'); // make the connection close after 1 second, for test purposes | |
| sleep(3); // wait for the connection to die | |
| $sum = $connection->query('SELECT 1 + 1')->fetchColumn(0); // query() should throw an exception, because ERRMODE is set to EXCEPTION | |
| if (intval($sum) === 2) | |
| { | |
| echo 'connection is good', PHP_EOL; | |
| } | |
| else | |
| { | |
| echo 'connection problem', PHP_EOL; | |
| } | |
| } | |
| catch (PDOException $e) | |
| { | |
| echo 'Exception: connection problem. Message: ', $e->getMessage(), PHP_EOL; | |
| } |
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