How to Create Dynamic Variable Names with a Loop in PHP?

Create Variable Variables Using Static String and Counter Variable in a Loop

The task at hand involves creating dynamic variable names within a loop, incrementally assigning sequential values to them. This can be achieved by leveraging variable variables and a counter variable.

Variable Variables

Variable variables allow you to create variables based on the value of another variable. In your case, the $seat prefix and the counter $counter will be dynamically combined to form the variable names.

Counter Variable

The $counter variable will increment with each iteration of the loop, determining the suffix of the variable names.

Solution

To create variable variables in the for loop, utilize the following syntax:

<code class="php">for ( $counter = 1; $counter <= $aantalZitjesBestellen; $counter ++) {
  $key = 'seat' . $counter;  // Creates the variable name dynamically
  $$key = $_POST[$key];  // Assigns the POST value to the newly created variable
}

As a result, the following variables will be created:

<code class="php">$seat1 = $_POST['seat1'];
$seat2 = $_POST['seat2'];
// ... and so on

Alternative: Using an Array

Alternatively, you can use an array to store the data, eliminating the need for variable variables. The syntax would be:

<code class="php">$seats = [];
for ( $counter = 1; $counter <= $aantalZitjesBestellen; $counter ++) {
  $key = 'seat' . $counter;
  $seats[$key] = $_POST[$key];
}

The resulting array would be:

<code class="php">$seats = [
  'seat1' => $_POST['seat1'],
  'seat2' => $_POST['seat2'],
  // ... and so on
];</code>

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