In what ways can PHP be optimized to efficiently handle and store user input from a large number of input fields?

When handling a large number of input fields in PHP, it is important to optimize the code to efficiently store and process the user input. One way to do this is by using arrays to group related input fields together, reducing the number of individual variables needed to store the data. Additionally, using loops to iterate over the input fields can help streamline the data processing process.

// Example code snippet to efficiently handle and store user input from a large number of input fields using arrays and loops

// Initialize an empty array to store user input
$userInput = [];

// Loop through all input fields and store their values in the array
foreach ($_POST as $key => $value) {
    $userInput[$key] = $value;
}

// Now you can access the user input using the array keys
echo $userInput['input_field_1'];
echo $userInput['input_field_2'];
// etc.