将我的PHP变量值传递到Js文件

Question

Hiii Everyone,

<script src="../../record/recordmp3.js?id=<?php echo $_GET['id'];?>&&test_no=<?php echo $_GET['test_no'];?>"></script>

<script type="text/javascript" data-my_var_1="some_val_1" data-my_var_2="some_val_2" src="/js/somefile.js"></script>

And I tried to get that passing value in recordmp3.js is

var student_id = this_js_script.attr('data-my_var_1');
var test_no = this_js_script.attr('data-my_var_2');

And also by

var student_id = "<?php echo $_GET['id'];?>";
var test_no = "<?php echo $_GET['test_no'];?>";

And my value is not passing correctly.Instead only '0' is passing In my index page I have some PHP variable value I need to pass that value to recordmp3.js file.Please help me to solve this issue.Thank you so much in advance.

Answer 1

I tried like below its working fine

<script src="../../record/recordmp3.js"></script>
<script type="text/javascript"> 
MYLIBRARY.init(["<?php echo $id; ?>", "<?php echo $test_no; ?>"]); 
MYLIBRARY.helloWorld(); 
</script>

var MYLIBRARY = MYLIBRARY || (function(){ 
var _args = {}; // private 

return { 
init : function(Args) { 
_args = Args; 
// some other initialising 
}, 
helloWorld : function() { 
window.id=  _args[0]; 
window.test_no= _args[1];
} 
}; 
}());

Answer 2

You need to convert these values to json array. You cannot directly assign the php values to JavaScript variables.
Hope this answer is useful. Please let me know if you find any difficulties on converting to json value.

Answer 3

.js files don't execute and compile the php files,so in order to access the php variables in javascript the file should be .php .

script.php

<?php
  $foo = 'Hello cool';
?>
<script>
var foo ='<?php echo $foo ?>';
console.log(foo);
</script>

i hope this example will solve your issue