Question

Let’s say I have this inputs :

<input type="hidden" name="block-1" value="001"/>
<input type="hidden" name="block-2" value="012"/>
<input type="hidden" name="block-3" value="002"/>
<input type="hidden" name="block-4" value="005"/>
<input type="hidden" name="block-5" value="008"/>

and I want to process those input using this PHP loop

$i = 1;

do {
    $x = 'block-'.$i;
    $webBlock = $_POST[$x];
    //some codes here
    $i++;
}

while (!empty($webBlock));

why I always have 6 outputs? and the last one is blank output. seems that loop always doing n+1. how to make correct loop based on number of inputs given? thanks!

Answer 1

Do you need while?

I’d go with:

$i=0;
foreach($_POST as $name => $value)
{
   if( strpos($name , 'block-') !== false ) echo $i . " - " . $name . ": " . $value;
   $i++;
}

Believe that should account for items named ‘block-n‘. The if statement basically says “if block- is anywhere in the name of the field, echo out such and such”.
Let me know if you get an error and will amend.