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<?php
// Your PHP code goes here
echo "Hello, World!"; // Example code to output "Hello, World!"
// You can write and test any PHP code in this online environment
?>
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PHPUnit is a framework independent library for unit testing PHP. Unit testing is a method by which small units of code are tested against expected results. This can result in errors going undetected for a long time and it can be difficult to isolate the cause of a specific bug within the code.
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Codeception collects and shares best practices and solutions for testing PHP web applications. With a flexible set of included modules tests are easy to write, easy to use and easy to maintain