How can one ensure that the necessary class definition file is properly included in PHP scripts to avoid errors like the one mentioned in the forum thread?

To ensure that the necessary class definition file is properly included in PHP scripts, you can use the `require_once` or `include_once` functions to include the file before using the class. This will prevent errors such as "Fatal error: Class 'ClassName' not found" mentioned in the forum thread. 

<?php
// Include the necessary class definition file
require_once 'path/to/class-definition-file.php';

// Now you can use the class without any errors
$obj = new ClassName();

Keywords

include require class definition PHP scripts errors

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