pp3/module/Application/view/application/admin/index.phtml

<?php
/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
?>
<?= $this->partial('_nav.phtml'); ?>
<h4>Find and edit plugin</h4>
<p>
<?= $this->partial('layout/flash.phtml'); ?>
</p>
<form class="form-inline" method="get" action="">
  <div class="form-group">
    <!-- <label for="exampleInputName2">Search</label> -->
    <input type="text" class="form-control" name="search" id="search" placeholder="Search for plugin..." style="width: 300px;" value="<?= $this->search ?>">
  </div>
  <button type="submit" class="btn btn-primary">Search</button>
</form>
<br/>
<br/>
<?php
if ($this->plugins) {
    echo '<table class="table table-striped">
    <thead>
        <tr>
            <th></th>
            <th>Plugin</th>
            <th>Versions</th>            
        </tr>
    </thead>
        <tbody>';

    foreach($this->plugins as $plugin) {
        echo $this->partial('application/admin/_plugin-listrow.phtml', array('plugin' => $plugin));
    }
    echo '</tbody></table>';
} else {
    if ($this->search) {
        echo '<p>Sorry, no plugins found</p>';
    }
}

?>
<script>
  $( function() {
    $( "#search" ).autocomplete({
      source: "<?= $this->url('admin',array('action'=>'search-autocomplete')) ?>",
      minLength: 3,      
    });
  } );
</script>