What potential issue is the user facing with the if statement in the PHP script?

The potential issue the user is facing with the if statement in the PHP script is that they are using a single equals sign (=) for comparison instead of a double equals sign (==). This will result in assignment instead of comparison, leading to unexpected behavior in the script. To solve this issue, the user should use a double equals sign for comparison in the if statement.

// Incorrect if statement
$number = 10;

if ($number = 10) {
    echo "Number is 10";
}

// Corrected if statement
$number = 10;

if ($number == 10) {
    echo "Number is 10";
}