array("a" => 2, "b" => 4, "c" => 2, "d" => 5, "e" => 6, "f" => 2)
现在我想通过某种条件过滤该数组,只保留值等于2的元素,并删除值为2的所有元素.
所以我期望的结果数组是:
array("a" => 2, "c" => 2, "f" => 2)
注意:我想保留原始数组中的键.
解决方法:
$fullarray = array('a'=>2,'b'=>4,'c'=>2,'d'=>5,'e'=>6,'f'=>2);
function filterarray($value){
return ($value == 2);
}
$filteredArray = array_filter($fullArray, 'filterarray');
foreach($filteredArray as $k => $v){
echo "$k = $v";
}