Warning: MySQLi_Error() Expects Exactly 1 Parameter, 0 Given Error

Warning: mysqli_error() expects exactly 1 parameter, 0 given error

mysqli_error() needs you to pass the connection to the database as a parameter. Documentation here has some helpful examples:

http://php.net/manual/en/mysqli.error.php

Try altering your problem line like so and you should be in good shape:

$query = mysqli_query($myConnection, $sqlCommand) or die (mysqli_error($myConnection)); 

mysqli_error() expects exactly 1 parameter, 0 given

As far as the sql error is concerned, does 'user' have permissions to alter the table?

How to fix mysqli_error() expects exactly 1 parameter

The function needs the statement also.

mysqli_stmt_error($yourstatement). 

Check it here - mysqli_stmt_error

How to recover deleted files which TortoiseSVN accidentally removed?

You won't find the answer in SVN, but you can use something like this undelete tool.

A file isn't really gone until the drive is formatted (long).

Why is dotnet's char.IsLower() a static method?

Instance methods on structures are not thread safe.
Static methods on the other hand are.

Static methods receive a copy of the structure, instance methods a managed pointer. Accessing data through a pointer is not a tread safe operation and can easily lead to race conditions.

That's why most methods on structures/primitives are static and not instance.

Se here a similar question.

Why IsNan is a static method on the Double class instead of an instance property ?

How do I reduce the flicker in IE on postback?

I think I have found the solution. It works in IE6, 7, and 8b2.

<meta http-equiv="Page-Exit" content="Alpha(opacity=100)" />

That will stop the flickering.

Uncaught ArgumentCountError: mysqli_error() expects exactly 1 argument, 0 given

When you call mysqli_error you have to provide the connection object, according to the docs:

https://www.php.net/manual/en/mysqli.error.php

You are calling mysql_error like this: mysql_error() which is incorrect.

I cannot see in your code where you create the mysql connection but lets pretend it is a variable named $conn. You should change mysql_error() to mysql_error($conn)

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