How to escape zf1 output?

Question

Zend Framework

How to escape the string output so that js does not work in the search string? Zend Framework1 (v. 1.12.3)

<div id="search-box">
            <input type="text" placeholder="<?php echo $this->languageText('TEXT_SEARCH_OUR_SITE',"Search Our Site"); ?>" name="query" id="query" />
            <div class="search-box-bk"></div>
        </div>

I tried this, but it didn't work

placeholder="<?php echo $this->escape($this->languageText('TEXT_SEARCH_OUR_SITE',"Search Our Site"));

Answer 1

<?php echo $this->escape() ?>should have worked.
We need a specific example on which escaping does not work.