Description:
------------
Hi PHP team. 

For empty() we have the following rule :
The following things are considered to be empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)

But values like  "0.0" are cosidered as not empty for example :
$zeroFloatString = "0.0"; (0.0 as a string) 
var_dump(empty($zeroFloatString));  prints false .  However the $zeroFloatString contains "0.0" value. 

Thanks, 
Anton


Test script:
---------------
$emptyString = ""; (an empty string)
$zeroInt = 0; (0 as an integer)
$zeroFloat = 0.0; (0 as a float)
$zeroString = "0"; (0 as a string)
$zeroFloatString = "0.0"; (0.0 as a string)

var_dump(empty($emptyString)); true
var_dump(empty($zeroInt)); true 
var_dump(empty($zeroFloat)); true 
var_dump(empty($zeroString)); true
var_dump(empty($zeroFloatString)); false 

Expected result:
----------------
bool(true)
bool(true)
bool(true)
bool(true)
bool(true)

Actual result:
--------------
bool(true)
bool(true)
bool(true)
bool(true)
bool(false) //   var_dump(empty($zeroFloatString))  where $zeroFloatString = "0.0"