Good catch! That's indeed the case. Another commit was made where that piece of code was refactored into a function and it returns 1 in case the header is prese

Good catch! That's indeed the case. Another commit was made where that piece of code was refactored into a function and it returns 1 in case the header is present so strstr isn't being called an extra time in the current code. [1] https://github.com/php/php-src/commit/3d9c02364db62a6d8e27947ffe47dbfaad644efe#diff-e0dff85f21e939e4e2a778bddb8a72d7 https://github.com/php/php-src/commit/3d9c02364db62a6d8e2794...