declare_strict_types.rst

Rule declare_strict_types

Force strict types declaration in all files. Requires PHP >= 7.0.

Warning

Using this rule is risky.

Forcing strict types will stop non strict code from working.

Examples

Example #1

--- Original
+++ New
-<?php
+<?php declare(strict_types=1);
\ No newline at end of file

Rule sets

The rule is part of the following rule sets:

@PHP70Migration:risky

Using the @PHP70Migration:risky rule set will enable the declare_strict_types rule.

@PHP71Migration:risky

Using the @PHP71Migration:risky rule set will enable the declare_strict_types rule.

@PHP74Migration:risky

Using the @PHP74Migration:risky rule set will enable the declare_strict_types rule.

@PHP80Migration:risky

Using the @PHP80Migration:risky rule set will enable the declare_strict_types rule.