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Optimize scanning for '&' and ';' using memchr. Use memcpy instead of character-by-character copying language. Closes GH-18092
#19141) Instead of * adding a zval on the stack * initializing it * copying the value to the attribute Just initialize the value directly in the zend_attribute_arg
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.
Both used "somelink". See https://github.com/php/php-src/actions/runs/16427526464/job/46421461376 Closes GH-19208.
* PHP-8.1: Fix test conflict between chmod_variation2 and file_variation5
* PHP-8.2: Fix test conflict between chmod_variation2 and file_variation5
* PHP-8.3: Fix test conflict between chmod_variation2 and file_variation5
* PHP-8.4: Fix test conflict between chmod_variation2 and file_variation5
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