PHP custom_fields::get_image_dir示例

    public function output()
    {
        if (strlen($this->value) > 0) {
            $dir = custom_fields::get_image_dir($this->field['directory']);
            $file = $dir . $this->value;
            echo <<<EOS
<tr>
\t<th>
\t\t<span class="faux-label">{$this->label}</span><br />
\t</th>
\t<td>
\t\t<input id="delete_{$this->name}" name="delete_{$this->name}" type="checkbox" /> <label for="delete_{$this->name}">Delete</label><br />
\t\t<a href="{$file}" target="_blank">View</a>
\t</td>
</tr>
EOS;
        } else {
            echo <<<EOS
<tr>
\t<th>
\t\t<label for="{$this->name}">{$this->label}</label><br />
\t</th>
\t<td>
\t\t<input type="file" id="{$this->name}" name="{$this->name}" />
\t\t<input type="button" value="Upload" onclick="document.post.enctype = 'multipart/form-data'; document.post.submit();" />
\t</td>
</tr>
EOS;
        }
    }