array_any
(PHP 8 >= 8.4.0)
array_any — Checks if at least one array element satisfies a callback function
说明
array_any() returns true, if the given
callback returns true for any element.
Otherwise the function returns false.
参数
返回值
The function returns true, if there is at least one element for which
callback returns true. Otherwise the function
returns false.
示例
示例 #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);
}));
?>以上示例会输出：
bool(true) bool(false) bool(false)
参见
- array_all() - Checks if all array elements satisfy a callback function
- array_filter() - 使用回调函数过滤数组的元素
- array_find() - Returns the first element satisfying a callback function
- array_find_key() - Returns the key of the first element satisfying a callback function
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