In the code snippet, what are the implications of not using curly braces for single-line if-else statements, and how does it impact the code execution?

When not using curly braces for single-line if-else statements, only the immediately following statement is considered to be inside the if or else block. This can lead to confusion and potential bugs if additional statements are added later on. To avoid this issue, it's best practice to always use curly braces for clarity and to ensure all related statements are properly enclosed within the if or else block.

// Incorrect code without curly braces
if ($condition)
    echo "Condition is true";
    echo "This statement is always executed";

// Corrected code with curly braces
if ($condition) {
    echo "Condition is true";
    echo "This statement is only executed if the condition is true";
}