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Q&A In PHP what is the use case for include instead of require when including PHP scripts?

The use case for require statements is fairly obvious. It can be used to include code from other PHP files into the current file. This allows you to split your code across multiple files. There ar...

posted 4y ago by Marijn‭

Answer
#1: Initial revision by user avatar Marijn‭ · 2020-11-13T23:00:37Z (about 4 years ago)
The use case for `require` statements is fairly obvious. It can be used to include code from other PHP files into the current file. This allows you to split your code across multiple files.

There are no _good_ reasons to use an `include` statement in PHP. The only difference between `include` and `require` is that `include` produces an `E_WARNING` level error, while `require` produces an `E_COMPILE_ERROR` level error, which causes the script to exit. An include statement might be occasionally useful when you are unsure whether the included file will exist during runtime, however a `require` prefixed with a `file_exists` is about *ten* times faster than a `@include` statement (n.b. the `@` operator will silence any error messages generated by the proceeding expression).