loop through $_POST variables with similar names

Question

I have several $_POST variables, they are

$_POST[\'item_number1\']
$_POST[\'item_number2\']

and so on

I need to write a loop tha di

Answer 1

If you must stick with those variable names like item_numberX

foreach (array_intersect_key($_POST, preg_grep('#^item_number\d+$#D', array_keys($_POST))) as $k => $v) {
    echo "$k $v \n";
}

or

foreach (new RegexIterator(new ArrayIterator($_POST), '#^a\d+$#D', null, RegexIterator::USE_KEY) as $k => $v) {
    echo "$k $v \n";
}

Better to use php's input variable array feature, if you can control the input names.

then php processes it into an array for you.

print_r($_POST['item_number']);