How can PHP developers efficiently remove the last character of a string if it meets a certain condition, such as being a forward slash?

To efficiently remove the last character of a string in PHP if it meets a certain condition, such as being a forward slash, you can use the rtrim() function in combination with a conditional check. You can check if the last character of the string is a forward slash and then remove it using rtrim().

$string = "example/";
if (substr($string, -1) == '/') {
    $string = rtrim($string, '/');
}
echo $string;