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<?php namespace { define('PREFETCH_PREFIXES', ['chart2', 'price']); } namespace ns1 { define('PREFETCH_PREFIXES', ['chart', 'price']); echo var_dump(PREFETCH_PREFIXES); }
Output for 8.5.0 - 8.5.3
Warning: Constant PREFETCH_PREFIXES already defined, this will be an error in PHP 9 in /in/2sdBS on line 9 array(2) { [0]=> string(6) "chart2" [1]=> string(5) "price" }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
Warning: Constant PREFETCH_PREFIXES already defined in /in/2sdBS on line 9 array(2) { [0]=> string(6) "chart2" [1]=> string(5) "price" }
Output for 7.4.0 - 7.4.33
Notice: Constant PREFETCH_PREFIXES already defined in /in/2sdBS on line 9 array(2) { [0]=> string(6) "chart2" [1]=> string(5) "price" }

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