Search results for: "IS"

What is the difference between "IS NULL" and "IS NOT NULL" in PHP MySQL queries?

"IS NULL" is used in MySQL queries to check if a particular column has a NULL value, while "IS NOT NULL" is used to check if the column has a non-NULL...

Is it possible to detect when a browser is closed using PHP alone, or is additional client-side scripting required?

It is not possible to detect when a browser is closed using PHP alone as PHP is a server-side language and does not have direct access to the client's...

What is the Modula Operator in PHP and how is it used to determine if a number is even or odd?

The Modula Operator in PHP is represented by the % symbol and is used to find the remainder of a division operation. To determine if a number is even...

What is mod_rewrite and how is it used in PHP?

Mod_rewrite is an Apache module used for URL rewriting. It allows you to manipulate URLs and redirect them to different locations. In PHP, mod_rewrite...

What is the difference between "!=" and "IS NOT" in a MySQL query?

In MySQL queries, the "!=" operator is used to check for inequality between two values, while the "IS NOT" operator is used to check if a value is not...