php to javascript

[BrainPill]

hello I have a javascript code snippet
I would like to add a php variable in the place where now is: abcd1234

original code: 

     <script>
     window.dataLayer = window.dataLayer || [];
     function func_name(){dataLayer.push(arguments);}
     func_name('js', new Date());
	 
     func_name('config', 'abcd1234');
     </script>

I tried this :

     <?php $var = 'abcd1234' ?>
     var my_var = <?php echo $var; ?>

 

but I don't know how to put the code in this line:

 

func_name('config', what here? );

 

 

 

 

[Ingolme]

Just echo the value there, but be sure to wrap it in Javascript quotes.

[BrainPill]

On 3/17/2019 at 5:53 PM, Ingolme said:

Just echo the value there, but be sure to wrap it in Javascript quotes.

I dont understand. How should it be done?

And what are Javascript quotes? And where to place them?

[BrainPill]

I solved the issue meanwhile by doing this:

"<?php echo $var ?>"

using the double quote .

Is that what you meant with javascript quotes?

[dsonesuk]

Yes! the quotes are part of the JavaScript code that requires a string value within those quotes, which is provided by echoing php variable. Without JavaScript quotes you would have

func_name('config', abcd1234 )

which would be treated as a JavaScript argument variable and because it has not been defined or has no value associated with it would throw a undefined error.