How can PHP arrays be utilized to handle multiple values from a form submission effectively?

When handling multiple values from a form submission in PHP, arrays can be utilized to store and manage these values efficiently. By naming form inputs with square brackets in the HTML form, PHP can automatically create an array of values when the form is submitted. This allows for easy iteration and manipulation of the values within the PHP script. 

<form method="post">
  <input type="text" name="colors[]">
  <input type="text" name="colors[]">
  <input type="text" name="colors[]">
  <input type="submit" value="Submit">
</form>

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $colors = $_POST['colors'];
  
  foreach ($colors as $color) {
    echo $color . "<br>";
  }
}
?>

Keywords

PHP arrays form submission handling multiple values data processing associative arrays

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