Help me with this code?

[v123shine]

I know, we can hide content from SE using this code:

!$show['search_engine']

I created a custom page using php and i want to hide several text/content from SE but real user (from browser like firefox, chrome, opera) can view the text/content.

Can someone help me to hide content from SE in php page, please!

[Disasterpiece]

if (!$show['search_engine']) {
echo "secret text";
}
?