Перебор массива

 $user['form_fields'] = array();
        foreach($config['privforms'] as $form_id){
        $user['form_fields'] = array_merge($user['form_fields'], cmsForm::getFieldsValues($form_id, $user['formsdata']));
        }

print_r($user['form_fields']):
Array ( 
[0] => Array (
[id] => 22 
[form_id] => 3 
[title] => Любимая музыка 
[description] =>
[field] => Pink
)
[1] => Array (
[id] => 24
[form_id] => 3
[title] => Образование
[description] => 
[field] =>
)
)

mb_strlen();

    foreach($user['form_fields'] as $form){
    $title += mb_strlen($form['title'])!=0?count($title):'';
    $field += mb_strlen($form['field'])!=0?count($field):'';
    }

<?php
$field     = count(array_filter(array_column($user['form_fields'],'field'),function($v){
                return preg_match("~^[^\s]+~",$v);      
}));
echo $field;
$title     = count(array_filter(array_column($user['form_fields'],'title'),function($v){
                return preg_match("~^[^\s]+~",$v);      
}));
echo $title;

foreach($user['form_fields'] as $v){
   if(preg_match("~^\\S+~ui",$v['field'])){
     $field[] = $v['field'];
}
}
echo count($field);