How can naming conventions impact the functionality of a PHP MySQL query?

Naming conventions can impact the functionality of a PHP MySQL query if the table or column names do not match the ones specified in the query. To solve this issue, ensure that the table and column names in the query match the actual names in the database. Using backticks around table and column names can also help to avoid conflicts with reserved keywords in MySQL. 

<?php
// Assuming table name is 'users' and column name is 'username'
$query = "SELECT * FROM `users` WHERE `username` = 'john_doe'";
$result = mysqli_query($connection, $query);
?>

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naming conventions PHP MySQL query functionality impact

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