moodle/message/search.html

<form id="personsearch" method="post">
<div id="combinedcontactssearchspan" class="mdl-left">
<table cellpadding="5" class="message_form">
    <tr>
        <td colspan="3" class="message_heading mdl-left">
            <input type="hidden" name="sesskey" value="<?php p(sesskey()); ?>" />
            <input type="text" name="combinedsearch" size="40" id="combinedsearch" value="<?php p($combinedsearchstring); ?>" />
            <input type="submit" name="combinedsubmit" value="<?php print_string('searchcombined','message') ?>" />
            <a href="index.php?usergroup=<?php echo MESSAGE_VIEW_SEARCH ?>&advanced=1" id="advancedcontactsearchlink"><?php print_string('advanced') ?></a>
        </td>
    </tr>
</table>
</div>

</form>