简体   繁体   中英

Echo a value from php to javascript

I have a .js file with only javascript in it and my question is; I have separate .php file and .js file. And I want to get the value the .php file echoes/returns. How can I fix this?

I searched around and found that I could use this:

php:

<?php
  echo 'name';  
?>

js:

var user_name;
$.get('getId.php', function(data) {
    user_name = data;
});
// other code

But this didn't work. Or perhaps do I need another js lib included? I don't get what the php file returns, its blank.

use json_encode();

Add jquery library

<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>

</head>

In PHP

<?php
  echo json_encode(array('name'));  
?>

THEN

    <script type="text/javascript">

    $(document).ready(function(){
        var user_name;
        $.get('getId.php', function(data) {
            user_name = data;
        });

   });   
 </script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">

$(document).ready(function(){

        $.ajax({
            type: "GET",
            url: "anyfile.php",
            success: function(data){
                alert(data);

            }
        });

        return false;


}); 
</script>

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM