How can PHP developers effectively debug and troubleshoot errors in their code, especially related to variable handling and syntax?

To effectively debug and troubleshoot errors in PHP code related to variable handling and syntax, developers can use tools like Xdebug for step-by-step debugging and error reporting. Additionally, utilizing error reporting functions like error_reporting(E_ALL) and ini_set('display_errors', 1) can help identify and display errors in the code. Checking for syntax errors by using a code editor with syntax highlighting and linting capabilities can also aid in catching mistakes early on.

<?php
// Enable error reporting
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Sample code with variable handling and syntax error
$variable = "Hello";
echo $variabl; // Syntax error: missing 'e' in variable name

// Corrected code
$variable = "Hello";
echo $variable;
?>