warning: Invalid argument supplied for foreach() in wysiwyg_filter.inc on line 523

Re: "warning: Invalid argument supplied for foreach() in .../sites/all/modules/wysiwyg_filter/wysiwyg_filter.inc on line 523"

hmm... this line looks like this:

  foreach (variable_get('wysiwyg_filter_'. $rule_key .'_'. $format, array()) as $rule) {

Note that variable_get() should return an array when 1) the variable exists, or 2) the variable does not exit (defaults to empty array).

So that PHP warning suggests that the variable exists, but it is NOT an array? Well, that's a different issue that could not be related to PHP 5.3. However, if we look at wysiwyg_filter_settings_filter_submit(), the code that parses the filter settings ensures these variables are stored as arrays. So, it seems that these variables have been corrupted somehow in your database.

Try saving the configuration of your input format and see if that helps. If that does not help, then we need to know what your variables contain, and then try to guess how they were corrupted.

Same problem, the relevant rows exported as CSV and attached as TXT.

Same problem, I run cron and get many

Invalid argument supplied for foreach() in ../profiles/drupal_commons/modules/contrib/wysiwyg_filter/wysiwyg_filter.pages.inc on line 425

Any help?

Sure I tried everything.

There ere related issues:
#885632: Don't export variables with a default value
#887532: Follow up: Input formats integration
Don't seem to be resolved, even if one of them is closed...

And when I set "Rules for URLs used within inline styles: /*" it doesn't get saved, I keep getting the warning:

The style attribute is used in your HTML elements and attributes rules, and you have enabled one of the following style properties: "background", "background-image", "list-style" or "list-style-image". You should specify the Rules for URLs used within inline styles field in the "Advanced rules" section below. Leaving it unspecified will result in all URLs used within inline styles filtered out.

I'm having the same issue. It seems that all my values are empty strings:

drush vget wysiwyg_filter_valid_classes_4: ""
drush vget wysiwyg_filter_valid_ids_4: ""
drush vget wysiwyg_filter_style_urls_4: ""
drush vget wysiwyg_filter_valid_classes_4: ""
drush vget wysiwyg_filter_valid_ids_4: ""
drush vget wysiwyg_filter_style_urls_4: ""

Setting this back to active because the problem still stands with the latest release 6.x-1.5.
For those who want to use to use it without errors.. (dirty) just add a @ in front of the foreach:

@foreach (variable_get('wysiwyg_filter_'. $rule_key .'_'. $format, array()) as $rule) {

This might be a better/cleaner solution:

  foreach (wysiwyg_filter_get_advanced_rules() as $rule_key => $rule_info) {
    $filter_options[$rule_key] = array();
    $rule_array = variable_get('wysiwyg_filter_'. $rule_key .'_'. $format, array());
    if (is_array($rule_array)) {
      foreach ($rule_array as $rule) {
        $filter_options[$rule_key][] = '`^'. str_replace("\xFF", $rule_info['asterisk_expansion'], preg_quote(str_replace('*', "\xFF", $rule), '`')) .'$`';
      }
    }
  }

Same issue but in my 6.x-1.5

Puting an @ in front of that foreach sure does not work....diff error.

Putting the new code into wysiwyg_filter.inc on line 523. does nothing.

I have tried rearranging the filters, adding valid tags etc. Nothing seems to remmidy this issue for me.

I have read on an off about this for months. No solid solution ?

Any help would be appriciated.

Used phpadmin to empty all cache tables, changed the filter options, ran cron, ran update. After doing all those the problem went away. Not sure what fixed it but next time I clone the site I will try them one at a time. I am thinking it is a cache issue. At least for me when I clone a site to a new domain.

Closing 6.x issues.