sandbox functions header menu form

.... echo '<div id="menu"><ul><li>';
echo ' <div id="menu"><ul><li id="srchli">';
echo '<form id="searchform" method="get" action="'. bloginfo('home') . '">';
echo '<div>';
echo '<input id="s" name="s" type="text" value="';
///////////////////////////////////////////


***   echo "<" . "?" . "php" ." echo " . wp_specialchars(stripslashes .($_GET['s']), true) . "?" . ">";


////////////////////////////////////




echo 'size="16"  maxlength="16" tabindex="0" />';
echo '<input id="searchsubmit" name="searchsubmit" type="submit" value="Finde" tabindex="1" />';
echo '</div>';
echo '</form></li>';