11 lines
299 B
PHP
11 lines
299 B
PHP
$f1 = fn($x) => $x * 2;
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$f2 = fn($x) => $x * $x;
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$fsf1 = array_map($f1, ?);
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$fsf2 = array_map($f2, ?);
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var_dump($fsf1([0, 1, 2, 3])); // [0, 2, 4, 6]
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var_dump($fsf2([0, 1, 2, 3])); // [0, 1, 4, 9]
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var_dump($fsf1([2, 4, 6, 8])); // [4, 8, 12, 16]
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var_dump($fsf2([2, 4, 6, 8])); // [4, 16, 36, 64]
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