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Why Am I Getting a 'could not find driver' PDOException When Connecting to MySQL?

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Release: 2024-12-18 01:41:10
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Why Am I Getting a

PDOException: "could not find driver" when Attempting to Connect to MySQL

Problem:

Users encounter a PDOException with the message "could not find driver" when attempting to connect to a MySQL database using the PDO extension in PHP.

Code:

1

$dbh = new PDO('mysql:host=' . DB_HOST . ';dbname=' . DB_NAME, DB_USER, DB_PASS)

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Cause:

The error is most likely caused by the absence of the necessary PDO driver for MySQL (pdo_mysql).

Solution:

To resolve the issue, the pdo_mysql module needs to be installed and enabled in PHP.

Steps:

  1. Check if pdo_mysql is installed by looking for it in the PHP information output (phpinfo()).
  2. If not installed, use the PECL command to install it:

    1

    sudo pecl install pdo_mysql

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  3. Edit the php.ini file and uncomment the following line to enable it:

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    extension=pdo_mysql.so

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  4. Restart Apache or the PHP-FPM service for the changes to take effect.

Example:

1

sudo systemctl restart apache2

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Note:

Make sure to replace sudo with your preferred root user command if necessary.

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