Hello world, it's Wednesday, August 19, 2026, and here's what happened This Week in PHP Internals.
12 stories this week, so let's get into it. But first, Is AI working for your team? Ballast answers that for free. It reads your git history — never your code — and gives you 2 numbers every month. Stable velocity tells you how much of what you ship survives. A durability score from 300 to 850 tells you whether it holds up. ballast.now.
This week's top story: a 5-argument function proposal turned into 25 messages, 3 threads, and the week's central design argument. Sepehr Mahmoudi, who introduced himself to the list 8 days ago, proposed array_search_range() — an array_search() that takes an offset and a length, so you can search part of an array without building an intermediate copy with array_slice(). Weilin Du replied the same evening to say the soft feature freeze had already closed 8.6 to it. Then Rowan Tommins raised the objection that shaped everything after it, suggesting: "I think it would be better to design something more composable - that is, a way to create a 'lazy array slice', and then accept that in functions which can use it safely." He pointed at Swift, which has types that let you refer to part of an array without copying any of it.
