Echo Ajax - PHP, AJAX, Jquery

Question

Currently I am experiencing a frustrating bug in my code. It seems that I can't echo an ajax call within php.Below is the code for the call. Any suggestions would be much appreciated Thanks.

echo'
<script>
$.get("fxn.php", { r: ""+result, id:""+'.$id.' } ).
    success(function(){ 
       alert("FXN"); 
    });
</script>';

Note:

Result is a javascript variable.
$id is a php variable.
The success function is never called.

indent your code and you will find a solution in less than a minute — Ibu
– Ibu, Commented Aug 7, 2011 at 21:44
If $id is not a number it won't work. I mean... id: "' . $id . '" — Jose Adrian
– Jose Adrian, Commented Aug 7, 2011 at 21:50
Can you explain what you need a + before result? Is this to force a String? Make sure you have no whitespace being passed if you're using something like a switch in your request page. — James P.
– James P., Commented Aug 7, 2011 at 21:58

cwallenpoole · Accepted Answer · 2011-08-07 21:52:33Z

// For those who come after, put a space after echo.
echo 
     // put type into your script tag. Be kind to the older browsers.
     '<script type="text/javascript">'.
     // are you sure jQuery has loaded at this point? Does `$` reference jQuery
     // or is there another framework that's nastying up $? (Liferay? Prototype?)
     '$.get("fxn.php", '.
     // I always prefer explicit casting, but is this defined?
     '{ r: ""+result, id:""+'
     // is $id a string? Then you need to quote it.
     .$id.' } ).'.
     // not necessary, but good practice, use the third parameter of `$.get`
     // instead of defining it externally.
     'success(function() { alert("FXN"); });</script>';

Proposed alternate:

echo '<script type="text/javascript">
         $.get("fxn.php", { r: String(result), id:"'.$id.'" }, function() { 
            alert("FXN"); 
         });
     </script>';

Oh, and are you sure that PHP is returning anything? What happens if you use get manually on fxn.php?

RiaD · Accepted Answer · 2011-08-07 21:50:16Z

1

Use heredoc to avoid a lot of qouting

echo <<< JS
    <script>$.get("fxn.php", { r: ""+result, "id":"$id" } ).success(function() { alert("FXN"); });</script>
JS;

answered Aug 7, 2011 at 21:50

RiaD

47.8k12 gold badges85 silver badges128 bronze badges

Comments

Moop · Accepted Answer · 2011-08-07 21:44:37Z

0

You need to make sure to escape the " characters in your echo. Like below

echo '<script>$.get(\"fxn.php\", { r: \"\"+result, id:\"\"+'.$id.' } ).success(function() { alert(\"FXN\"); });</script>';

answered Aug 7, 2011 at 21:44

Moop

3,6212 gold badges27 silver badges45 bronze badges

1 Comment

cwallenpoole Over a year ago

Double-quotes within single-quotes needs not be escaped.

Collectives™ on Stack Overflow

Echo Ajax - PHP, AJAX, Jquery

3 Answers 3

Comments

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related