warning: preg_match() expects parameter 2 to be string, array given in [mywebsite]/includes/bootstrap.inc on line 732

Having the same issue with the drupal 5.11 distribution. Its on line 679 for me.

Same message on my installation of 6.5. Occurs in User page after updating profile.

Sorry I don't have any help for you just to add seeing the same error in the logs using 6.5 preg_match() expects parameter 2 to be string, array given in bootstrap.inc on line 732.

Ok, something is passing an array instead of a string to the function "check_plain" on line 696 of bootstrap.inc (drupal 6), which in turn calls the function drupal_validate_utf8 on line 732. I added the following quick fix right at the beginning of the function:
if (is_array($text)) return '';

so that now it looks like this:

function check_plain($text) {
  if (is_array($text)) return ''; // <-- Modified!
  return drupal_validate_utf8($text) ? htmlspecialchars($text, ENT_QUOTES) : '';
}

Has anyone else sourced a solution without patching core? Thanks.

If you are having the bootstrap 732 error and are running location/GMap modules, update to the newest rc release and you will hopefully be good to go.

Hi everybody,

the last comment pinpointed the culprit in this case: it seems to come from the Facebook Status module. Deinstalling it and the error is gone. I added a bug report there: http://drupal.org/node/332411

Hi

I have the same error with :
* Drupal 6.13,
* MySQL 5.0.81
* PHP 5.2.8

"warning: preg_match() expects parameter 2 to be string, array given in /home/website/public_html/raya/includes/bootstrap.inc on line 771."

there an issue ?

S.

Just upgraded to Views 6.x.2-7 and this very same error now appears on a number of my pages which are built using views. My line number is reporting 777 but otherwise, exactly as you have described the problem.
Downgrading to Views 6.x.2.6 cleared my problem.

Error appeared for all users on my site.

Drupal 6.14
MySQL 5.1.33
PHP 5.2.9

I will cross post this issue on the Views project.

Expiriencing the same problem (only difference is the line number, which is 777 in my case)... I guess it was just after I uninstalled the IMCE-Module and the associateded IMCE_Image-Field. It first appeared on the site of a content type, which used to have a IMCE-image-field, then it also appeared on a "panel-content"-page while creating a new panel-page.

???

What to do?? Any help much appreciated!!

All modules and core at the current stable releases..

Here is the message I receive on one of my sites:
warning: preg_match() expects parameter 2 to be string, array given in /home/etc../includes/bootstrap.inc on line 777.

For me, it only happens when I want to modify menu items.

visiting admin/build/menu works fine but then, when I click one of my menus (for example: "Primary Links") to manage the menu items, the message appears and the items are not listed.

An empty table is displayed, saying "Loading data..." and it doesn't load anything.

So, i don't just have the message...I can not make any change in my menus!

I have too many modules installed to list here. Unfortunately, I can not disable them one by one right now to find which one is causing the problem. I'll do it later, but in the mean time, if any one has a solution...

Thanks,
Thierry

For me, the problem was exhibited by the rootcandy theme code:
#656558: $items passed to theme('item_list',...) may contain subarrays from menu_navigation_links's $menu_tree

The backtrace was:
bootstrap.inc: drupal_validate_utf8 line 741
common.inc: check_plain line 1526
theme.inc: drupal_attributes line 1499
theme.inc: call_user_func_array line 617
template.php: theme line 135
theme.inc: call_user_func_array line 617
template.php: theme line 128
page.tpl.php: _rootcandy_admin_navigation line 52
theme.inc: include line 1020
theme.inc: theme_render_template line 686
index.php: theme line 3

It passed an array of items to the theme() function but these menu arrays can have additional arrays within them not present in the standard menu tree, for example the attributes subarray here:

Array
(
    [menu-232] => Array
        (
            [attributes] => Array
                (
                    [title] => 
                )

            [href] => <front>
            [title] => Front
        )
...
[ Later, a data attribute is added to the array, like [data] => <a href="/">Front</a> ]

I think the critical part is the function theme_item_list, which declares $items as "An array of items to be displayed in the list. If an item is a string, then it is used as is. If an item is an array, then the "data" element of the array is used as the contents of the list item. If an item is an array with a "children" element, those children are displayed in a nested list. All other elements are treated as attributes of the list item element.":
http://api.drupal.org/api/function/theme_item_list/6

It is not prepared to deal with an that contains an array that is not a "children" element. It treats it as an attribute, i.e. a string, leading to the error.

Admins are seeing it because rootcandy is normally used as an admin-only theme. It is linked to menus because the primary links may contain such [attributes] subarrays. There may well be similar assumptions made by other code.

Hi, i have the same issue with and without rootcandy, what do you think about that solution?
http://drupal.org/node/525036

i dont like but i need to solve it.

I'm installing, with an empty database and a fresh download of 6.15, and I get this error after the first screen with line 777. The error shows on the "Set up Database" screen. Here is the complete error text:

====
Warning: preg_match() expects parameter 2 to be string, array given in C:\wamp\www\drupal\includes\bootstrap.inc on line 777

Warning: Cannot modify header information - headers already sent by (output started at C:\wamp\www\drupal\includes\bootstrap.inc:777) in C:\wamp\www\drupal\includes\common.inc on line 148
====

I'm trying to use a peculiar setup though; shared login/profiles and separate tables otherwise. This is a documented feature, as shown in the default.settings.php file:

====
* To provide prefixes for specific tables, set $db_prefix as an array.
* The array's keys are the table names and the values are the prefixes.
* The 'default' element holds the prefix for any tables not specified
* elsewhere in the array. Example:
*
* $db_prefix = array(
* 'default' => 'main_',
* 'users' => 'shared_',
* 'sessions' => 'shared_',
* 'role' => 'shared_',
* 'authmap' => 'shared_',
* );
====

After enabling this setup (taking care to put ends on the comment blocks) and disabling the later assignment of $db_prefix='', the error occurs and allows the installation to continue. After continuing, the tables are installed with no prefixes whatsoever. This is only a warning, but results in a complete nullification of the feature.

When using an alternate setup with a single value instead of an array here, the tables are prefixed correctly.

I see this issue has been around for about 2 years now. I hope it is resolved soon, as my alternative to using this is some hack or a workaround involving LDAP or something.

Error still exists with Drupal 6.16
warning: preg_match() expects parameter 2 to be string, array given in /home/drupal/includes/bootstrap.inc on line 777.

It appears only on translated pages. It doesn't on pages in default language.

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