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Вывод случайного числа php


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@ethoz, начальный код:

$query_random_news = new WP_Query();

$query_random_all = $query_random_news->query(array('post_type' => 'page','post_parent' => 33));
$query_random_count = count($query_random_all);
				
function getFourRandomNumber ($maxCount){
$numbers = range(0, $maxCount);
			
				
shuffle($numbers);
return array($numbers[0], $numbers[1]);
}

$arr_all = getFourRandomNumber($query_random_count);
$news_1 = $arr_all[1];
$news_2 = $arr_all[0];

@ethoz, ваш код выводит:

Array ( [0] => 0 [1] => 4 )

При:

$query_random_news = new WP_Query();

$query_random_all = $query_random_news->query(array('post_type' => 'page','post_parent' => 33));
$query_random_count = count($query_random_all);
				
function getFourRandomNumber ($maxCount,$unset){
    $numbers = range(0, $maxCount);
    shuffle($numbers);

    unset($numbers[array_search($unset, array_keys($numbers))]);
    $numbers = array_values($numbers);

    return array($numbers[0], $numbers[1]);
}

$arr_all = getFourRandomNumber($query_random_count,0);
$news_1 = $arr_all[1];
$news_2 = $arr_all[0];
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При таком раскладе:
 

$arr_all = getFourRandomNumber($query_random_count,0);

 

Никак не может быть Array ( [0] => 0 [1] => 4 ), т.к. $unset = 0 и он будет удалён из массива $numbers.

 

 

print_r($numbers);

 

Array
(
    [0] => 6
    [1] => 4
    [2] => 1
    [3] => 9
    [4] => 7
    [5] => 8
    [6] => 3
    [7] => 10
    [8] => 2
)

 

 

print_r(getFourRandomNumber(10,0));

 

Array
(
    [0] => 6
    [1] => 4
)
 

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С этим разобрался. Но есть ещё один вопрос: Как удалить ячейку массива зная её значение. 

 

Пример нужно удалить Arry[1], но известно только ID->2:

Array
(
    [0] => WP_Post Object
        (
            [ID] => 1
            ...
        )
    [1] => WP_Post Object
        (
            [ID] => 2
            ...
        )
....
    [999] => WP_Post Object
        (
            [ID] => 999
            ...
        )
)
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