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How do I use a custom filed value in an external javascript? I'd like to use a custom field already stored for a post that is an url in an external javascript

<script type='text/javascript' src='http://www.my-website.com/wp-content/themes/mytheme/js/scripts.js'></script>

in order to open a new window

onclick="window.open('MY_CUSTOM_FIELD_VALUE');"

I tried to add

global $post; $cf = get_post_meta( $post->ID, 'my_custom_field', true );

but it doesn't work. Thanks for your help.

  • You might be able to do with Ajax. You have the control of the 'external JavaScript' ? – sri Mar 24 '14 at 10:17
  • yes I have control of the javascript... I've created it – advalue Mar 24 '14 at 10:36
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I had a similar problem using custom field values in a widget that used JavaScript. I wrote a tutorial explaining it. Try this code:

<?php 
global $post;
$cf = get_post_meta($post->ID, 'my_custom_field', true);     
?>

<button onclick="window.open(<?php echo json_encode($cf); ?>);">Click me</button>
  • Thanks for your help. Do I have to insert your code in the js file? In my js I'd like to insert the function that I call in the <a href="openWindows()"... so I need to call the custom field directly from the js – advalue Mar 27 '14 at 17:31

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