循环php $ _POST数组名称

Question

I would like to loop 5 arrays in post.
What should be the right code to display:
$_POST["fp0"]
$_POST["fp1"]
..
$_POST["fp5"]
in a loop?

$x = 0;
while($x <= 5) {
 $fp = ${'_POST["fp'.$x.'"]'};
 echo $fp.'<br>';
 $x++;
}

Answer 1

Try this:

$x = 0;
while($x <= 5) {
 $fp = $_POST["fp$x"];
 echo $fp.'<br>';
 $x++;
}