How Can I Effectively Handle Errors When Using MySQLi Prepared Statements?

MySQLi Prepared Statements Error Reporting

When working with MySQLi prepared statements, it's crucial to understand the error reporting mechanism. By default, MySQLi returns a boolean indicating whether the preparation of the SQL statement was successful. This raises the question of whether it also detects execution errors.

Detecting Execution Errors

Original Approach:

The original approach used the return value of the prepare statement to detect errors, assuming that it captures all errors associated with query execution.

Improved Approach:

To ensure comprehensive error handling, it's recommended to adopt a more rigorous approach:

1. Add Error Reporting: Execute the following line at the beginning of your connection code:

   mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

   This will enable MySQLi to report all potential errors.

2. Handle Errors After Execution:

   • Exception Handling: Utilize PHP's try-catch block to handle exceptions raised by MySQLi errors.
   • Error Checking: Alternatively, check the statement's errno property to verify that no errors have occurred.

By following this enhanced approach, you can be confident that all errors, regardless of their source, will be captured and handled appropriately.

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