This is my serialized data and i want to remove one of key's value.
{a:9:{s:7:"320x480";s:16:"en_1_320x480.jpg";s:7:"320x568";s:16:"en_2_320x568.jpg";s:7:"360......
If i do like this
$pcon = unserialize($body);
$pcon[$_POST['id']]='';
$body = serialize($pcon);
It will be
{s:7:"320x480";s:16:"";s:7:"320x568...
I want like this
{s:7:"320x480";N;s:7:"320x568...
It must like this
$pcon[$_POST['id']]=Null;