This should work:
<?php $script = "<script type="text/javascript">
jQuery( document ).ready( function($) {
$(document).ready(function() {
$('#particles').particleground({
dotColor: " . json_encode($dotcolor) . ",
lineColor: '#5cb9bd',
});
});
}
);
</script>";
?>
Note:
Its a better practice to enqueue Javascripts with wp_enqueue_script()
and include dynamic strings via wp_localize_script()
.
Docs:
https://codex.wordpress.org/Function_Reference/wp_enqueue_script
https://codex.wordpress.org/Function_Reference/wp_localize_script