如何保存附带复选框的输入字段？

Question

I have a list a checkboxes with accompanying input text fields. If the user checks a box, the accompanying text field will be add to an array.

I am new to PHP and was wondering if anyone can help me in the right direction.

Should I use a for loop, foreach, while, unique "name" for each input, or something else?

Below is what I have so far.

<?php
if(isset($_POST['submit'])){
  $array = array();
  while(isset($_POST['check'])){
    if(!isset($_POST[$some_text]) || empty($_POST[$some_text])){
      echo "Please include your text for each checkbox you selected.";
      exit();
    }
   $array[] = $_POST['some_text];
 }
}
?>

<form>
<input type="checkbox" name="check"><input type="text name="some_text">
<input type="checkbox" name="check"><input type="text name="some_text">
<input type="checkbox" name="check"><input type="text name="some_text">
<!-- I might have around 100 of these -->
<!-- submit button here -->
</form>

Answer 1

You first need a way to associate your checkboxes with their corresponding text fields, and a way to tell them apart. For example:

<form>
<input type="checkbox" name="check[]" value="1"><input type="text name="text1">
<input type="checkbox" name="check[]" value="2"><input type="text name="text2">
<input type="checkbox" name="check[]" value="3"><input type="text name="text3">
</form>

Now you can loop through it as follows:

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    if (isset($_POST['check']) && is_array($_POST['check']) && !empty($_POST['check'])) {
        $array = array();
        foreach ($_POST['check'] as $value) {
            $text_field = 'text' . $value;
            if (!isset($_POST[$text_field]) || trim($_POST[$text_field]) == '') {
                echo "Please include your text for each checkbox you selected.";
                exit;
            }
            $array[] = $_POST[$text_field];
        }
    }
}