What are some common mistakes made by beginners when writing conditional statements in PHP for dynamic website functionality?

One common mistake beginners make when writing conditional statements in PHP for dynamic website functionality is not using the correct comparison operators. For example, using a single equal sign (=) instead of a double equal sign (==) for comparison can lead to unintended results. To solve this issue, always use the appropriate comparison operator based on the condition you are checking.

// Incorrect comparison using single equal sign
$age = 25;

if($age = 25) {
    echo "Age is 25";
}

// Correct comparison using double equal sign
$age = 25;

if($age == 25) {
    echo "Age is 25";
}