Conflict with Custom Field Suite plugin

[Buildbetter]

Very bad error. I have installed plugin https://wordpress.org/plugins/custom-field-suite/
latest WP, php 7.4 latest QT-xt-3.10.1

In admin page has meta-box with dynamic fields, when page is saved error is displayed.

Pleace HELP.

Fatal error: Uncaught TypeError: preg_match(): Argument #2 ($subject) must be of type string, array given in /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/qtranslate_utils.php:389 Stack trace: #0 /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/qtranslate_utils.php(389): preg_match('/<!--:[a-z]{2,3...', Array) #1 /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/admin/qtx_admin.php(47): qtranxf_isMultilingual(Array) #2 /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/admin/qtx_admin.php(62): qtranxf_collect_translations(Array, Array, 'bg') #3 /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/admin/qtx_admin.php(62): qtranxf_collect_translations(Array, Array, 'bg') #4 /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/admin/qtx_admin.php(62): qtranxf_collect_translations(Array, Array, 'bg') #5 /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/admin/qtx_admin.php(62): qtranxf_collect_translations(Array, Array, 'bg') #6 /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/admin/qtx_admin.php(62): qtranxf_collect_translations(Array, Array, 'bg') #7 /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/admin/qtx_admin.php(96): qtranxf_collect_translations(Array, Array, 'bg') #8 /home/myfolder/public_html/wp-includes/class-wp-hook.php(292): qtranxf_collect_translations_posted('') #9 /home/myfolder/public_html/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array) #10 /home/myfolder/public_html/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #11 /home/myfolder/public_html/wp-settings.php(423): do_action('plugins_loaded') #12 /home/myfolder/public_html/wp-config.php(90): require_once('/home/myfolder/...') #13 /home/myfolder/public_html/wp-load.php(37): require_once('/home/myfolder/...') #14 /home/myfolder/public_html/wp-admin/admin.php(34): require_once('/home/myfolder/...') #15 /home/myfolder/public_html/wp-admin/post.php(12): require_once('/home/myfolder/...') #16 {main} thrown in /home/myfolder/public_html/wp-content/plugins/qtranslate-xt/qtranslate_utils.php on line 389

ONLY THIS FIX HELPS

function qtranxf_isMultilingual( $str ) {
$lang_code = QTX_LANG_CODE_FORMAT;

if( is_admin() AND is_array($str) ) { $str = $str[0]; }  // FIX !!!

return preg_match( "/<!--:$lang_code-->|\[:$lang_code]|{:$lang_code}/im", $str );

}

[herrvigg]

In fact qtranxf_isMultilingual expects a string, not an array. I'm not so sure this fix is good enough.

Normally, the REQUEST['qtranslate-fields'] should look like

qtranslate-fields['post_title']['en']
qtranslate-fields['post_title']['fr']
qtranslate-fields['post_title']['de']
qtranslate-fields['content']['en']
qtranslate-fields['content']['fr']
qtranslate-fields['content']['de']
...

What do you have in your case?

[Buildbetter]

Whit this plugin you can add new metabox with editor fiield! If qtranslate is active when you save page you get error.
https://wordpress.org/plugins/custom-field-suite/

The error is: Fatal error: Uncaught TypeError: preg_match(): Argument #2 ($subject) must be of type string, array given in ..... /wp-content/plugins/qtranslate-xt/qtranslate_utils.php on line 389

Its because we have second editor here.

[herrvigg]

My intention is to strongly type the arguments even more in the future with modern versions of PHP so I'd rather avoid handling this with a loosely defined type in qtranxf_isMultilingual. If it's an array what does it mean? Why would we only take the first element? Better stick to a string and fix the calling side.

How does your $REQUEST look like, in particular REQUEST['qtranslate-fields']?
(asked one year ago but no answer)

[Buildbetter]

array(5) { ["post_title"]=> array(2) { ["bg"]=> string(12) "Начало" ["en"]=> string(4) "Home" } ["content"]=> array(2) { ["bg"]=> string(0) "" ["en"]=> string(0) "" } ["btmenu_text"]=> array(2) { ["bg"]=> string(0) "" ["en"]=> string(0) "" } ["cfs"]=> &array(1) { ["input"]=> &array(2) { [1]=> array(1) { ["value"]=> array(2) { ["bg"]=> string(0) "" ["en"]=> string(0) "" } } [6]=> &array(2) { [0]=> &array(1) { [5]=> &array(1) { ["value"]=> &array(2) { ["bg"]=> array(1) { [0]=> string(11) "fcgjhgfhjg1" } ["en"]=> array(1) { [0]=> string(11) "fcgjhgfhjg2" } } } } [1]=> array(1) { [5]=> array(1) { ["value"]=> array(3) { ["bg"]=> array(1) { [0]=> string(7) "sfgd bg" } ["en"]=> array(1) { [0]=> string(7) "sfgd en" } ["qtranslate-separator"]=> string(1) "[" } } } } } } ["excerpt"]=> array(3) { ["bg"]=> string(0) "" ["en"]=> string(0) "" ["qtranslate-separator"]=> string(1) "[" } } array(1) { [0]=> string(11) "fcgjhgfhjg1" }

[leicestersq]

Hello. This is happening to me as well. I may provide details if you need. The proposed fix did the trick, but it would be nice to further investigate the issue

[Buildbetter]

function qtranxf_isMultilingual($input): bool {
// Check if the input is an array
if (is_array($input)) {
// Iterate over each element in the array
foreach ($input as $str) {
// Check if the element is a string and contains multilingual content
if (is_string($str) && qtranxf_has_multilingual_content($str)) {
return true; // Return true if multilingual content is found
}
}
return false; // Return false if multilingual content is not found in any element
} elseif (is_string($input)) {
// Check if the input is a string and contains multilingual content
return qtranxf_has_multilingual_content($input);
}
return false; // Return false for other types of input
}

function qtranxf_has_multilingual_content(?string $str): bool {
$lang_code = QTX_LANG_CODE_FORMAT;
return !is_null($str) && preg_match("/|[:$lang_code]|{:$lang_code}/im", $str);
}