Changed E_STRICT Notices

Introduced with PHP 5, the E_STRICT notice was intended to have PHP suggest changes to code to ensure better interoperability and forward compatibility. It had to be explicitly enabled in the php.ini file. Enabling E_STRICT at runtime, using error_reporting(), did not help, because all E_STRICT errors were compile-time errors.

Starting with PHP 5.4, the E_STRICT flag was included in E_ALL to give it a higher visibility, yet most installations explicitly disabled it.

In PHP 7 all cases that used to trigger an E_STRICT notice got reclassified to other error types or were completely removed. For better compatibility the E_STRICT constant was kept but has no longer any effect or meaning.