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Issue:

• Zend Framework placeholder (headTitle, headMeta, headLink, headScript, headStyle, inlineScript) creates twice or multiple title/meta/link/script tags in HTML.
• Duplicated title/meta/link/script tags generated from Zend Framework placeholder.
• e.g.:

  source:

  <?php echo $this->headScript()->appendFile("/scripts/global.js") ?>
  <?php echo $this->headScript()->appendFile("/scripts/main.js") ?>

  output:

  <script src="/scripts/global.js" type="text/javascript"></script>
  <script src="/scripts/global.js" type="text/javascript"></script>
  <script src="/scripts/main.js" type="text/javascript"></script>

Reason:

• Echo will output all elements in a placeholder.

Solution:

• Echo only once for each placeholder.
• e.g.:

  <?php $this->headLink()->appendStylesheet('/styles/global.css') ?>
  <?php $this->headLink()->appendStylesheet('/styles/main.css') ?>
  <?php echo $this->headLink() ?>
  
  <?php $this->headScript()->appendFile("/scripts/global.js") ?>
  <?php $this->headScript()->appendFile("/scripts/main.js") ?>
  <?php echo $this->headScript() ?>