What are the potential pitfalls of using reserved words like "char" in MySQL queries when working with PHP?

Using reserved words like "char" in MySQL queries can lead to syntax errors or unexpected behavior in your PHP code. To avoid this issue, you should always use backticks (`) to escape reserved words in your queries. This will ensure that the query is parsed correctly by MySQL.

$query = "SELECT `char` FROM table_name WHERE condition = 'value'";