Logical Issue ifelse loop - php

Question

I am trying to post data in updated section but I can't. I am using ajax method for posting. The problems in ifelse loop because if i remove all three if else loop then the data will be posted.
why i use these ifelse logic because if user didn't select date value from input than value should be NULL
<?PHP
if(isset($_POST['action']) && $_POST['action']=="add")
{
add data
}
if(isset($_POST['action'])&& $_POST['action']=="update") //data update
{
update data
}
if(isset($_POST['action']) && $_POST['action']=="delete") //Action for delere
{
delete data
}
elseif(isset($_POST['action'])&& $_POST['action']=="updated")
{
$id=$_POST['edit_id'];
$istatus=$_POST['edit_istatus'];
$idpicker= $_POST["sdatepicker"][0];
$cstatus=$_POST['edit_cstatus'];
$cdpicker= $_POST["sdatepicker"][1];
$rstatus=$_POST['edit_rstatus'];
$rdpicker= $_POST["sdatepicker"][2];
if($i_date=strtotime($idpicker) == false)
{
$iinsertDate=NULL;
}
else
{
$iinsertDate = date("Y-m-d",strtotime($idpicker));
}
if($c_date=strtotime($cdpicker) == false)
{
$cinsertDate=NULL;
}
else
{
$cinsertDate = date("Y-m-d",strtotime($cdpicker));
}
if($r_date=strtotime($rdpicker) == false)
{
$rinsertDate=NULL;
}
else
{
$rinsertDate = date("Y-m-d",strtotime($rdpicker));
}
$test = mysqli_query($conn,"UPDATE status SET istatus='$istatus',idate='$iinsertDate',cdate='$cinsertDate',rdate='$rinsertDate',rstatus='$rstatus',cstatus='$cstatus' WHERE sid='$id'") or die ("Query Wrong");
echo '{"status":"3"}';
exit;
}
?>

Answer 1

Try using this:
if(isset($_POST['action']) && $_POST['action']=="add")
{
// add data
}
if(isset($_POST['action']) && $_POST['action']=="update")
{
//update data
}
if(isset($_POST['action']) && $_POST['action']=="delete")
{
//delete data
}
if(isset($_POST['action']) && $_POST['action']=="updated")
{
$id=$_POST['edit_id'];
$istatus=$_POST['edit_istatus'];
$idpicker= $_POST["sdatepicker"][0];
$cstatus=$_POST['edit_cstatus'];
$cdpicker= $_POST["sdatepicker"][1];
$rstatus=$_POST['edit_rstatus'];
$rdpicker= $_POST["sdatepicker"][2];
$iinsertDate = NULL;
$cinsertDate = NULL;
$rinsertDate = NULL;
if($i_date=strtotime($idpicker) != false)
{
$iinsertDate = date("Y-m-d",strtotime($idpicker));
}
if($c_date=strtotime($cdpicker) != false)
{
$cinsertDate = date("Y-m-d",strtotime($cdpicker));
}
if($r_date=strtotime($rdpicker) != false)
{
$rinsertDate = date("Y-m-d",strtotime($rdpicker));
}
if($iinsertDate != NULL && $cinsertDate != NULL && $rinsertDate != NULL)
{
$test = mysqli_query($conn,"UPDATE status SET istatus = '$istatus', idate = '$iinsertDate', cdate = '$cinsertDate', rdate = '$rinsertDate', rstatus = '$rstatus', cstatus = '$cstatus' WHERE sid = '$id'") or die ("Query Wrong");
echo json_encode(array("status"=>"3"));
}
else
{
//what ever else you want to do
}
}