echo一个php变量，它在一个javascript函数里面，在php [duplicate]里面

Question

This question already has an answer here:

• How to add php content or variable inside javascript alert box?! javascript, php, alertbox 5 answers

This snippet is of jQuery code is inside the php already...How do I access variables inside the jquery code

<?php


echo'
    $( "#searchButton" ).click(function() {


    //    location.reload();
    alert(\"$folder\"); //This is causing error
    });'

?> 

</div>

Answer 1

<?php
echo'
   $( "#searchButton" ).click(function() {
       alert("'.$folder.'");
   });';
?>