i am trying to print " in echo statement.
i can't get any method other than

<?php 
echo " " ";
?>

which is definitely wrong.
help me to find a way out of it.
any help is appreciated.

try using single qoute for the double quotes and double quoutes for the single quotes. Otherwise, yo can escape it. Another alternative is to use heredoc for a longer string., but for your situation something like this will do..
<?php
echo '"';
echo "' '";
?>

You need to escape the double quote with a backslash:

<?php
echo " \" ";
?>

thanks for your response.
i will keep that in mindand use it in future.