PHP email validation function cannot echo JS alert?

Question

if(isset($_POST['check'])){
    $email =  $_POST['email'];
    if (filter_var($email, FILTER_VALIDATE_EMAIL)) { 
       echo '<script language="javascript">'; 
       echo 'alert(Valid email)';   
       echo '</script>';
    } else { 
       echo '<script language="javascript">'; 
       echo 'alert(Not valid email)';   
       echo '</script>';     
    }
}

i'm trying to show an alert with the result but it's not working. however echo a text working but not JS alert.

why is that? is there another way to do that?

Missing quotes for the strings you want to alert? Wouldn't your browser console give a hint on that? — user8034901
– user8034901, Commented Nov 13, 2021 at 12:26

Berk Kanburlar · Accepted Answer · 2021-11-13 12:31:31Z

1

put '<script type="application/javascript">' instead of '<script language="javascript">'

yout script tag attribute is wrong and also you use alert function wrong. change alert(Valid email) to alert("Valid email") and change alert(Not valid email) to alert("Not valid email").

answered Nov 13, 2021 at 12:31

Berk Kanburlar

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