PHP how echo Js Custom alert

Question

hello I picked up a custom alert from the internet and would like to implement in my php echo alert, already tried several ways but I can not find the correct syntax. help please

I think I need to pass the "echo" to the javascript and call the function when you call the "echo" in PHP, but I'm not having any luck

  <script>
  function CustomAlert(){
this.render = function(){
    var winW =  window.innerWidth;
    var winH = window.innerHeight;
    var dialogoverlay = document.getElementById('dialogoverlay');
    var dialogbox = document.getElementById('dialogbox');
    dialogoverlay.style.display = "block";
    dialogoverlay.style.height = winH+"px";
    dialogbox.style.left = "20px";
    dialogbox.style.top = "70px";
    dialogbox.style.display = "block";
    document.getElementById('dialogboxhead').innerHTML = "Login Processado com Sucesso";
    document.getElementById('dialogboxbody').innerHTML = "Seja Bem Vindo";
    document.getElementById('dialogboxfoot').innerHTML = '<button onclick="Alert.ok()">OK</button>';


}
this.ok = function(){
    document.getElementById('dialogbox').style.display = "none";
    document.getElementById('dialogoverlay').style.display = "none";

}
}
var Alert = new CustomAlert();

</script>

and php:

   <?php
  $email=$_POST['email'];
  $senha=$_POST['senha'];
  $sql = mysql_query("SELECT email, senha FROM clientes WHERE email = '$email' and senha = '$senha'") or die(mysql_error());
  $row = mysql_num_rows($sql);
  if($row > 0 ) {
session_start();
$_SESSION['email']=$_POST['email'];
$_SESSION['senha']=$_POST['senha'];
echo '<script>';
echo 'Alert.render("Login efetuado com sucesso")';
echo '</script>';
echo "<script>loginsucessfully()</script>";


    } else {
echo "Usuario ou senha invalidos";
echo "<script>loginfailed()</script>";
    }

   ?>

I need call the var Alert.render on my PHP echo

Frank021
– Frank021

2014-04-02 23:28:44 +00:00
Commented Apr 2, 2014 at 23:28 — Frank021
– Frank021, Commented Apr 2, 2014 at 23:28

Max Roncace · Accepted Answer · 2015-08-13 22:52:35Z

2

To pass a variable from PHP to Javascript:

var something = <?php echo $something; ?>;

As a side note, the semicolon in the PHP tags isn't necessary since it's only one line of code; it's just a matter of style.

edited Aug 13, 2015 at 22:52

answered Apr 2, 2014 at 21:41

Max Roncace

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8 Comments

Frank021 Over a year ago

ok thanks, but how to Javascript to PHP, i just need when my user login sucessfully show this custom alert.. can you show me how ? please

Frank021 Over a year ago

ok but i've declared var Alert = CustomAlert(); how i can pass this var Alert to echo on php, like var Alert = (CustomAlert() + <?php echo $something; ?>; i cant figure it out

Max Roncace Over a year ago

Are you just trying to display a simple JS alert? If so, you can use alert(<?php echo $something; ?>);.

Frank021 Over a year ago

trying to use my custom alert js on php echo alert .. what i dont understand is how echo an JS var, but the var calls a function so i cant use var something = <?php echo $something; ?>;

Frank021 Over a year ago

I need call the var Alert.render on my PHP echo

|

rsm23 · Accepted Answer · 2014-04-02 21:54:40Z

1

To do this you can either program a javascript function that submits a form - or you can use ajax / jquery. jQuery.post

Or maybe this can help you .

<script type="text/javascript">
  var foo = '<?php echo $foo ?>';
</script>

answered Apr 2, 2014 at 21:54

rsm23

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