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Home Questions & Answers Technology PHP Question Answers require_once(), require(), include().What is difference between them

    require_once(), require(), include().What is difference between them

  • require() includes and evaluates a specific file, while require_once() does that only if it has not been included before (on the same page). So, require_once() is recommended to use when you want to include a file where you have a lot of functions for example. This way you make sure you don't include the file more times and you will not get the "function re-declared" error.

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