What are the potential pitfalls of not using backticks when dealing with reserved functions in MySQL?

When dealing with reserved functions in MySQL, not using backticks can lead to syntax errors or unexpected behavior. To avoid this, it is important to always wrap reserved functions or keywords in backticks when writing SQL queries in PHP. 

$query = "SELECT `count`, `sum`, `order` FROM table";
$result = mysqli_query($connection, $query);

Keywords

PHP MySQL backticks reserved functions syntax error

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