Fatal error: Uncaught Error: Call to a member function fetchColumn() on bool [duplicate]

This error is caused by calling the fetchColumn() method on a boolean value instead of a valid PDO statement.

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Understanding the Fatal Error: Call to a Member Function fetchColumn() on Bool [Duplicate] and How to Fix It
When working with PHP, you may come across an error that says "Fatal Error: Call to a Member Function fetchColumn() on Bool". This error can be frustrating and confusing, especially if you are not familiar with the terminology involved. In this article, we will take a closer look at what this error means and how to fix it.

Troubleshooting the Call to a Member Function fetchColumn() on Bool Error
If you are a developer who has encountered a "Call to a member function fetchColumn() on bool" error message while working with PHP and databases, there are several possible solutions to investigate.

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When working with PHP and databases, it is not uncommon to encounter errors related to SQL queries. One such error is the "Uncaught Error Call to a Member Function fetchColumn() on Boolean". This error occurs when a fetchColumn() function is called on a boolean variable instead of a valid database object. In this article, we will discuss the causes and solutions of this error.