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php Anonymous function Anonymous function

1. Anonymous function Anonymous function 2. Arrow function Arrow function (a more concise anonymous function) 3. Anonymous function I sometimes write anonymous

GGAMI·2024-02-01

Anonymous function Anonymous function

<?php

$multiply = function ($x, $y) {

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return

$x

*

$y

;

}

;

echo

$multiply

(

10

,

20

)

;

// 200

Arrow function Arrow function (a more concise anonymous function)

$myFunction = (arg1, arg2, ...argN) => {
    statement(s)
}
or 
$myFunction = (arg1, arg2, ...argN) => expression

Anonymous function

$input = 100;
$result = (function (int $input) {
 return $input*5;
})($input);

I sometimes write anonymous functions in code.

The performance isn't particularly guaranteed, but it's still not bad.

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