Fluent Form Password Strogn Requirement

ff-storng-password.php

add_filter('fluentform_validate_input_item_input_password', function($errorMessage, $field, $formData, $fields, $form){
    
    $target_form_id = 9;
    if($form->id != $target_form_id){
        return;
    }
    $password =  $formData['password'];
    $errorMessage = '';
    //numbers
    $pattern = "/[0-9]/";
    $match = preg_match($pattern,$password);
    if (!$match){
        
        $errorMessage= "You need atleast 1 number!";
        return [$errorMessage];
    }
    // 8 charcter min
    $pattern = "/(?=.{8,})/";
    $match = preg_match($pattern,$password);
    //preg_match($pattern, $password, $matches, PREG_OFFSET_CAPTURE, 0);
    if (!$match){
        
        $errorMessage= "You need minimum 8 charcter!";
        return [$errorMessage];
    }
    // small and capital
    $pattern = "/(?=.*[a-z])(?=.*[A-Z])/";
    $match = preg_match($pattern,$password);
    if (!$match){

        $errorMessage= "You need one to 1 smaller and 1 upper charcter!";
        return [$errorMessage];
    }
    // special charcter
    $pattern = "/(?=.*[^\w\d])/";
    $match = preg_match($pattern,$password);
    if (!$match){

        $errorMessage= "You need one to 1 special charcter !";
        return [$errorMessage];
    }
    
    return ;
    
    
},10,5);