[ZEND-PHP-DEV] Some technical help

Hello, I'am trying to develop a php-module. I have found a lot of help in the php manual and in code source of php, but i have still some problems to use array by parameter. I'd like to make a "test" function to take an array by parmeter, to re create it, and to return it but it's failed : ZEND_FUNCTION( sylvain_array_cpy ) { zval * arr; Bucket * ptr; HashTable * target_hash; if( zend_parse_parameters( ZEND_NUMS_ARGS() TSRMLS_CC, "a", &arr == FAILURE ) { return;} target_hash = HASH_OF(arr); ptr = target_hash -> pListHead; array_init( return_value ); while( ptr != NULL ){ add_next_index_double( return_value, *((double*)(ptr->pData) ); ptr=ptr->pNext; } } In fact, i probably do not use the rigth methode : i just want to access to the element of my array (it a array : { 0=>0.11111, 1=>12.2, .......} (array of double) thx for you help Sylvain