Difference between call_user_function and call_user_function_ex

[paraboul]

Hi,

 

I started to play with SAPI of PHP and write some stuff.

Sadly core API is not as documented as PHP userspace

What is the difference between call_user_function and call_user_function_ex.

 

Thanks

[corbin]

Well, it looks as though it is called from an external binary (I would guess a lib), so I can't tell you much about what exactly the different in what the two functions do is....

 

 

I can tell you what parameters they take though, based on their prototypes in Zend/Zend_API.h

 

ZEND_API int call_user_function(HashTable *function_table, zval **object_pp, zval *function_name, zval *retval_ptr, zend_uint param_count, zval *params[] TSRMLS_DC);
ZEND_API int call_user_function_ex(HashTable *function_table, zval **object_pp, zval *function_name, zval **retval_ptr_ptr, zend_uint param_count, zval **params[], int no_separation, HashTable *symbol_table TSRMLS_DC);

 

As you will see retval_ptr is doubley indirected in _ex, no_separation exists, and a symbol_table param can be passed.

 

 

 

Of course, assuming you have the ability to search text files (and if you're modifying the PHP core or you're coding an extension I would hope you do), then I've told you nothing new.