Small optimizations to array_chunk #19190
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For this benchmark: ```php $length = 25; for ($i=0;$i<1000;$i++) array_chunk(range(0, 10000), $length); ``` On an i7-4790, length=25 speeds up by 1.8x and length=1 by 1.27x. On an i7-1185G7, length=25 speeds up by 1.08x and length=1 by 1.02x.
By preallocating it as a packed array, we save the initial initialization overhead. Gives a few extra percentage points improvement.
Girgias
reviewed
Jul 20, 2025
iluuu1994
approved these changes
Jul 21, 2025
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