How can beginners improve their PHP coding skills to prevent common mistakes like not using proper code formatting or missing essential functions in their scripts?

Beginners can improve their PHP coding skills by following coding standards like PSR-1 and PSR-2 for proper code formatting. They should also regularly practice writing code and familiarize themselves with essential PHP functions to avoid missing them in their scripts. Additionally, utilizing an integrated development environment (IDE) with code completion and syntax checking features can help identify and correct mistakes in real-time.

<?php

// Example of using proper code formatting following PSR-1 and PSR-2 standards
class ExampleClass
{
    public function exampleMethod()
    {
        // Essential PHP function used properly
        $result = array_map(function($item) {
            return strtoupper($item);
        }, ['apple', 'banana', 'cherry']);

        return $result;
    }
}

$example = new ExampleClass();
var_dump($example->exampleMethod());