[thelist] PHP question... checking string length

[Theodore Serbinski]

Guys, got a quick question. In PHP, I usually test if a string is empty like so:

if ($myString=='') // do something

But I recently stumbled upon some code from a much more experienced
PHP person test empty strings like so:

if (strlen($myString) == 0) // do something

Is there any difference/advantage to using one over the other? Only
apparently one is using the first method should be marginally faster
(no function call). Thanks!

ted