What best practices should beginners follow when working with PHP code to avoid common errors?

Issue: Undefined variable errors can occur when a variable is used before it has been defined or assigned a value. To avoid this error, always initialize variables before using them in your code. 

// Initialize the variable before using it
$variable = '';

// Now you can safely use the variable
echo $variable;

Keywords

syntax errors debugging error handling security vulnerabilities code optimization

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