<pre>

Since the curly braces literally mean "evaluate my contents as a string"

use 
    print_r() or var_dump()
the superglobal $GLOBALS

use
    get_defined_vars()
to find out the variable names that have been created.

</pre>

<pre>
Since the curly braces literally mean "evaluate my contents as a string"

<hr>

"Have a play around yourself, remembering that you can 
print_r() or var_dump() the superglobal $GLOBALS
or even use get_defined_vars() 
to find out the variable names that have been created."

</pre>

Since the curly braces literally mean "evaluate my contents as a string" "Have a play around yourself, remembering that you can print_r() or var_dump() the superglobal $GLOBALS or even use get_defined_vars() to find out the variable names that have been created."

Or use your favourite PHP IDE and use the almighty debug prespective.

http://cowburn.info/2008/01/12/php-vars-curly-braces/

PHP Variable Names

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