What is the purpose of the IF-Abfrage in the PHP code provided in the thread?

The purpose of the IF-Abfrage in the PHP code provided is to check if a certain condition is met before executing a block of code. In this case, the IF-Abfrage is checking if the variable $z is equal to 1 before executing the code inside the if statement. This is a common practice in programming to control the flow of the program based on certain conditions.

$z = 1;

if ($z == 1) {
    // Code to be executed if $z is equal to 1
    echo "Variable z is equal to 1";
} else {
    // Code to be executed if $z is not equal to 1
    echo "Variable z is not equal to 1";
}