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Why does mysqli_query() require a MySQLi object as its first parameter?
Why does mysqli_query() require a MySQLi object as its first parameter?
Nov 23, 2024 am 05:47 AM
Error: mysqli_query() Expects First Parameter to Be MySQLi
Problem:
When using a class to connect to a MySQL database, an error is encountered:
Warning: mysqli_query() expects parameter 1 to be mysqli, object given
Underlying Issue:
The issue arises when attempting to execute a query using mysqli_query(). The function expects the first parameter to be a MySQLi object, but the code is currently passing an instance of the class instead.
Solution:
To resolve the error, pass $connection->myconn instead of $connection as the first parameter to mysqli_query().
Here is the corrected code:
$result = mysqli_query($connection->myconn, $query);
Explanation:
The class property $myconn holds the MySQLi connection object. By passing $connection->myconn, we are correctly passing the required MySQLi object to mysqli_query().
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