How-to articles, tricks, and solutions about MYSQLI

Codeigniter: fatal error call to undefined function mysqli_init()

Here's an example of how the error might appear in a Codeigniter application:

Commands out of sync; you can't run this command now

The "Commands out of sync; you can't run this command now" error in PHP usually occurs when you have called a MySQL function in an incorrect order.

Example of how to use bind_result vs get_result

The mysqli_stmt::bind_result() method binds variables to a prepared statement for result storage.

Fatal error: Call to undefined function mysqli_connect()

The "Fatal error: Call to undefined function mysqli_connect()" error in PHP typically occurs when the MySQLi extension is not enabled or properly configured in your PHP environment.

get array of rows with mysqli result

You can use the mysqli_fetch_assoc() function to retrieve an associative array of a single row from a result set, and use a loop to iterate through the result set and store each row in an array.

Headers and client library minor version mismatch

If you are seeing this error message in PHP, it may be caused by a mismatch between the version of the PHP client library that you are using and the version of the API that it is trying to access.

How can I enable the MySQLi extension in PHP 7?

To enable the MySQLi extension in PHP 7, you need to follow these steps.

How do I display a MySQL error in PHP for a long query that depends on the user input?

To display a MySQL error in PHP for a long query that depends on user input, you can use the mysqli_error() function.

How to install MySQLi on MacOS

To install MySQLi on a Mac, you will first need to install the MySQL database server on your machine.

mysqli or PDO - what are the pros and cons?

mysqli and PDO are both PHP extensions used for interacting with databases.

mysqli_connect(): (HY000/2002): No connection could be made

This error message typically indicates that there was a problem trying to establish a connection to the MySQL server.

mysqli_fetch_array while loop columns

The mysqli_fetch_array() function in PHP is used to retrieve rows of data from a MySQL database query result, and return the data as an array.

mysqli::query(): Couldn't fetch mysqli

This error message is typically encountered when an attempt to execute a MySQLi query has failed.

Send html form data to sql database via php (using mysqli)

To send HTML form data to a SQL database using PHP, you will need to use the mysqli (MySQL Improved) extension in PHP.

Warning: mysqli_connect(): (HY000/2002): No such file or directory

This error message is indicating that there is a problem connecting to the MySQL server.