http://blog.jeremybarthe.com/post/1465024153/configurations-javascript-dynamiques-en-symfony

gistfile1.php

var globalConfigs = {
  // ...

  wysiwyg: {
    script_url: '/js/tiny_mce/tiny_mce.js',
    theme: "advanced",
    element_format : "xhtml",
    cleanup : true,
    theme_advanced_buttons1: "<?php echo sfConfig::get('app_tinymce_theme_advanced_buttons1') ?>",
    theme_advanced_buttons2: "<?php echo sfConfig::get('app_tinymce_theme_advanced_buttons2') ?>",
    theme_advanced_buttons3: "<?php echo sfConfig::get('app_tinymce_theme_advanced_buttons3') ?>",
    theme_advanced_buttons4: "<?php echo sfConfig::get('app_tinymce_theme_advanced_buttons4') ?>",
    theme_advanced_toolbar_location: "top",
    theme_advanced_toolbar_align: "left",
    width: "100%",
    paste_auto_cleanup_on_paste : true
  }
};