Question

I’ve got the following bit of code to check if a form with multiple fields are correctly filled. The problem is, is that it doesn’t concat the strings properly.

Below is some code of the code:

if(strlen($name) < 2 || strlen($email) < 6 || strlen($subject) < 5 || strlen($message) < 15){
                $alert = "There are some problems: \n";

                if(strlen($name) < 2){
                    $alert . "Name is too short \n";
                }

                if(strlen($email) < 6){ 
                    $alert . "email is too short \n";
                }

                if(strlen($subject) < 5){
                    $alert . "The subject is too short \n";
                }

                if(strlen($message) < 15){ 
                    $alert . "Your message is too short \n";
                }

                $alert . "Please fill in te fields correctly";

                echo $alert;
                ?>
                <script>
                alert("<?= $alert ?>");
                </script>
                <?php
            }
            else { ... } ?>

If i place an echo inside each if statement it shows that it triggers, but in the end all that get’s alerted and printed by the echo is “There are some problems:”
Why doesn’t the alert string gets properly concatinated? I tried removing the \n in each sentence but that didn’t work either.

Answer 1

You should be doing $alert .= "something", not just $alert . "something".