PHP require vs include - Sal Ferrarello

The behaviors of require, include, require_once, and include_once in PHP are all very similar with some slight differences. Here is the table highlighting the different behaviors of these statements.

PHP statement	File Does Not Exist	File Already Loaded
`require`	Fatal Error	loads again
`include`	Warning	loads again
`require_once`	Fatal Error	skips it
`include_once`	Warning	skips it

Sal Ferrarello (@salcode)

Sal is a PHP developer with a focus on the WordPress platform. He is a conference speaker with a background including Piano Player, Radio DJ, Magician/Juggler, Beach Photographer, and High School Math Teacher. Sal can be found professionally at WebDevStudios, where he works as a senior backend engineer.

Sal Ferrarello (@salcode)

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