What are the potential pitfalls of not properly declaring variables in PHP code, as seen in the example provided in the forum thread?

The potential pitfalls of not properly declaring variables in PHP code include confusion, errors, and security vulnerabilities. When variables are not declared, PHP will automatically create them, which can lead to unexpected behavior. To solve this issue, always declare variables before using them to ensure clarity and prevent potential issues. 

<?php
// Properly declaring variables
$first_name = "John";
$last_name = "Doe";

echo "Hello, " . $first_name . " " . $last_name;
?>

Keywords

undeclared variables error_reporting debugging strict typing PHP.ini E_NOTICE

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