Here are a few title options, playing with different question formats: Direct and Concise: * Why Can\'t I Find the PDO Class in PHP? * How to Fix the \'Class \'PDO\' not Found\' Error in P

Resolve PHP "Class 'PDO' not Found" Error

The PHP error "Class 'PDO' not found" indicates that the PHP Data Objects (PDO) extension is missing from the PHP installation. This extension is required for database connectivity in PHP applications.

Possible Causes:

• The PDO extension is not installed.
• The PDO extension is not enabled in the PHP configuration file (php.ini).
• The extensions for specific database drivers (e.g., PDO_MySQL) are not installed.

Resolution:

1. Install the PDO Extension:

Run the following commands to install the PDO extension:

yum install php-pdo

2. Verify PDO Availability:

Check if the PDO extension is enabled in php.ini:

extension=pdo.so

Restart the web server after making any changes to php.ini.

3. Install Database Driver Extensions:

Depending on the database being used, install the appropriate driver extension. For MySQL, run:

yum install php-pdo_mysql

Restart the web server again after installing the driver extension.

Additional Notes:

• Ensure that the PHP version matches the version of the installed PDO extension.
• Verify that the PDO_MySQL driver is enabled in php.ini:

extension=pdo_mysql.so

After following these steps, the PDO extension should be available and the error should be resolved.

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