How to Make PDO Throw Exceptions by Default in PHP?

How to Configure PDO to Throw Exceptions by Default

PDO provides a convenient mechanism for database interactions in PHP. By default, it operates in a "silent mode," where errors are not raised as exceptions. For developers who prefer to handle errors explicitly, it's desirable to modify this behavior.

Solution:

To set PDO to throw exceptions by default, modify the constructor arguments when creating a new PDO object:

<code class="php">$pdo = new PDO('mysql:host=localhost;dbname=someDatabase', 'username', 'password', [
  PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
]);</code>

This code snippet adds the setAttribute call to the constructor, immediately setting the error mode to "exception mode."

Alternative Approaches:

While there is no direct configuration within php.ini or other config files to achieve this behavior, there are alternative approaches:

• Create a PDO wrapper class: Define a class that wraps PDO with the preferred error mode set as a default constructor argument.
• Global PDO instance: Create a global PDO instance with the desired error mode and use it throughout your application.
• Error handling utility: Develop a function or utility that sets the error mode for any PDO instance created within its scope.

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