$x = <<<AAA
<form action="duzenle.php" method="post">
<table><tr><td>BAŞLIK <td /><td>
<input type="text" name="baslik" value="$baslik" size="50"><td /><tr />
<tr><td>İÇERİK <td /><td>
<textarea name="icerik1" id="icerik1" cols="45" rows="5">$icerik</textarea><td /><tr />
<tr><td>RESİM URL <td /><td>
<input type="text" name="resim" value="$resim" size="50">
--------------------------------------------------------------
<td /><tr />
<tr><td>KATEGORİ <br><b>$kategori</b><td /><td>
<select size="1" name="kategori" tabindex="2">
AAA;
echo $x;