If you want to write PHP code to get above diamond symbol you can use below code:
<![CDATA[</p>
<p>for($i=0;$i<=5;$i++)<br />
{ <br />
for($k=5;$k>=$i;$k--)<br />
{ <br />
echo " "; <br />
} <br />
for($j=1;$j<=$i;$j++)<br />
{ <br />
echo "* "; <br />
} <br />
echo "<br>"; <br />
} <br />
for($i=4;$i>=1;$i--)<br />
{ <br />
for($k=5;$k>=$i;$k--)<br />
{ <br />
echo " "; <br />
} <br />
for($j=1;$j<=$i;$j++)<br />
{ <br />
echo "* "; <br />
} <br />
echo "<br>"; <br />
} </p>
<p>]]>
