What are the potential challenges for a programmer experienced in RPG transitioning to PHP?

One potential challenge for a programmer experienced in RPG transitioning to PHP is the syntax differences between the two languages. RPG is a procedural language while PHP is a scripting language, which may require a shift in mindset when writing code. To overcome this challenge, the programmer can start by familiarizing themselves with PHP syntax and best practices, as well as practicing writing PHP code regularly.

// Example PHP code snippet
<?php
// Define a variable in PHP
$variable = "Hello, world!";

// Print the variable value
echo $variable;
?>