How can I identify private PHP functions ?

[lastottoman]

for example

<?

$d = date("Y/m/d");

echo $d;

?>

date() is a private php function. I want to set link which string is private php function.

for example : http://www.zend.com/codex.php?id=411&single=1

count is a private php function and it's underline.

[dannys]

http://www.php.net/manual/en/function.get-defined-functions.php will return an array of functions built into PHP (PHP has no private functions, I assume you mean pre-defined functions)

[lastottoman]

ok thanks but it's only defined functions. I wanna all php functions. how can I get them ?