What is the potential error message when trying to instantiate a class that is not found in PHP?

When trying to instantiate a class that is not found in PHP, you will likely encounter a fatal error message stating "Class 'ClassName' not found." This error occurs when the class you are trying to instantiate does not exist in the current scope or has not been included/required in the file. To solve this issue, make sure the class definition is included or required before trying to instantiate it. 

// Include or require the file containing the class definition
require_once 'ClassName.php';

// Instantiate the class
$obj = new ClassName();

Keywords

Class not found PHP error Fatal error Autoloading Namespace.

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