array_any

Checks if at least one array element satisfies a callback function

説明

mixed array_any(array $array, callable $callback)

array_any returns true, if the given callback returns true for any element. Otherwise the function returns false.

パラメータ

array

The array that should be searched.

callback

The callback function to call to check each element, which must be

bool callback(mixed $value, mixed $key)

If this function returns true, true is returned from array_any and the callback will not be called for further elements.

戻り値

The function returns true, if there is at least one element for which callback returns true. Otherwise the function returns false.

例

例1 array_any example

<?php
$array = [
    'a' => 'dog',
    'b' => 'cat',
    'c' => 'cow',
    'd' => 'duck',
    'e' => 'goose',
    'f' => 'elephant'
];

// Check, if any animal name is longer than 5 letters.
var_dump(array_any($array, function (string $value) {
    return strlen($value) > 5;
}));

// Check, if any animal name is shorter than 3 letters.
var_dump(array_any($array, function (string $value) {
    return strlen($value) < 3;
}));

// Check, if any array key is not a string.
var_dump(array_any($array, function (string $value, $key) {
   return !is_string($key);
}));
?>

上の例の出力は以下となります。

bool(true)
bool(false)
bool(false)

参考

array_all
array_filter
array_find
array_find_key