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7th Gear (v3.59.3) edition

Rule date_time_immutable

Class DateTimeImmutable should be used instead of DateTime.

Warning

Using this rule is risky

Risky when the code relies on modifying DateTime objects or if any of the date_create* functions are overridden.

Examples

Example #1

--- Original
+++ New
 <?php
-new DateTime();
+new DateTimeImmutable();

References

The test class defines officially supported behaviour. Each test case is a part of our backward compatibility promise.