Why Am I Getting a \'Cannot Redeclare Class\' Error in PHP?

PHP Class Redeclaration Error: "Cannot Redeclare Class"

When attempting to run your PHP code, you may encounter a critical error that reads, "PHP Fatal error: Cannot redeclare class." This enigmatic message can leave you perplexed about its cause.

Explanation: The Root of the Issue

This error arises when you have multiple instances of a class declaration with the same name within your code. Unintentionally, you may have included the same class definition across multiple files, leading to this error.

Solution: Employing include_once and Avoiding Overlapping Inclusions

To remedy this issue, it's crucial to ensure that each class is declared only once. When including files, utilize the include_once statement to prevent multiple inclusions. This function ensures that a file is included only once, even if it's referenced multiple times in your code.

Here's an example of using include_once:

include_once "something.php";

By employing this cautious approach, you can effectively eliminate the "Cannot Redeclare Class" error and ensure that your PHP code runs seamlessly.

The above is the detailed content of Why Am I Getting a \'Cannot Redeclare Class\' Error in PHP?. For more information, please follow other related articles on the PHP Chinese website!