What are common reasons for PHP code not functioning as expected when tested locally?

Common reasons for PHP code not functioning as expected when tested locally include syntax errors, missing or incorrect file paths, issues with server configurations, and missing required extensions or libraries. To solve this, carefully review the code for syntax errors, ensure file paths are correct, check server configurations, and make sure all required extensions or libraries are installed. 

<?php
// Example code snippet with correct syntax and file paths
include 'config.php';

// Check if required extension is installed
if (!extension_loaded('mysqli')) {
    die('The mysqli extension is not installed.');
}

// Your PHP code here
?>

Keywords

local environment PHP configuration syntax error file permissions database connection

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