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

The potential issue the user is facing with the if... else statement in their PHP script is that they are missing an opening curly brace '{' after the if condition. To solve this issue, they should ensure that each if statement is followed by an opening curly brace '{' to properly define the block of code to be executed if the condition is true.

// Incorrect code
if ($condition)
    echo "Condition is true!";
else
    echo "Condition is false!";

// Corrected code
if ($condition) {
    echo "Condition is true!";
} else {
    echo "Condition is false!";
}