我将如何在PHP中传递字符串名称？

Hi have a problem here how can i pass the string name in php? here's my code

i want to pass the data to the input type using $_GET or $_POST

if(isset($_POST['pickup']) == NULL){
    echo "-";
}
else{
    echo $_POST['pickup'];
}

i want to pass the data into the input type how will i get?

I think this is what you're looking for:

<input type='text' name='pickup' value='<?=$_POST['pickup'];?>'>

Try this,

if(isset($_POST['pickup']) == NULL){
    $input = "-";
}
else{
    $input = $_POST['pickup'];
}
<input type='text' name='pickup' value='<? echo $input;?>'>