A lambda function is an anonymous PHP function that can be stored in a variable and passed as an argument to other functions or methods. A closure is a lambda function that is aware of its surrounding context. For example –
1 2 3 4 5 6 7 8 | <?php $input = array(1, 2, 3, 4, 5); $output = array_filter($input, function ($v) { return $v > 2; }); ?> |
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