在具有搜索值的元素之后从数组中删除所有元素

Question

$week_link_arr

Array
(
    [0] => 1-4_1*Oct-2015
    [1] => 5-11_2*Oct-2015
    [2] => 12-18_3*Oct-2015
    [3] => 19-25_4*Oct-2015
    [4] => 26-31_5*Oct-2015
)

$current_week_url

1-4_1*Oct-2015

尝试使用 array_search 获取密钥，如果找到则使用 unset 将其删除：

if (($key = array_search($current_week_url, $week_link_arr)) !== false) {
    unset($week_link_arr[$key]);
}

输出

Array
(
    [1] => 5-11_2*Oct-2015
    [2] => 12-18_3*Oct-2015
    [3] => 19-25_4*Oct-2015
    [4] => 26-31_5*Oct-2015
)

这将删除找到的密钥。相反，如果找到键，我需要删除后续的数组元素。键 1-4_1*Oct-2015

的预期输出

Array
(
    [0] => 1-4_1*Oct-2015
)

如果键是5-11_2*Oct-2015，那么

Array
(
    [0] => 1-4_1*Oct-2015
    [1] => 5-11_2*Oct-2015
)

Answer 1

在这种情况下，您的键是数组中的索引所以你可以简单地删除这个键和数组其余部分之间的键

if (($key = array_search($current_week_url, $week_link_arr)) !== false) {
    array_splice($week_link_arr, $key, count($week_link_arr)-1);
}

Answer 2

你是这个意思吗？

if (($key = array_search($current_week_url, $week_link_arr)) !== false) {
      $week_link_arr = array_slice($week_link_arr, 0, $key + 1);
}

Remove all elements from array after element with searched value