class.ilMailTemplatePlaceholderResolver.php

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<?php
/* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilMailTemplatePlaceholderResolver
{
        protected $context;

        protected $message;

        public function __construct(ilMailTemplateContext $context, $a_message)
        {
                $this->context = $context;
                $this->message = $a_message;
        }

        public function resolve(ilObjUser $user = null, $a_context_params = array(), $replace_empty = true)
        {
                $message = $this->message;

                foreach($this->context->getPlaceholders() as $key => $ph_definition)
                {
                        $result   = $this->context->resolvePlaceholder($key, $a_context_params, $user);
                        
                        if(!$replace_empty && strlen($result) === 0)
                        {
                                continue;
                        }

                        $message = str_replace('[' . $ph_definition['placeholder'] . ']', $result, $message);
                }

                return $message;
        }
}