結論もどき
PHP_FUNCTION(array_reverse)
↓void zif_array_reverse(zend_execute_data *execute_data, zval *return_value)
読むソースコード
php/php-src: The PHP Interpreter
手元のソースコードのコミットは こちら
PHP_FUNCTIONが使われているところの例
ext/standard/array.c
/* {{{ proto array array_reverse(array input [, bool preserve keys])
Return input as a new array with the order of the entries reversed */PHP_FUNCTION(array_reverse){zval*input,/* Input array */*entry;/* An entry in the input array */zend_string*string_key;zend_ulongnum_key;zend_boolpreserve_keys=0;/* whether to preserve keys */ZEND_PARSE_PARAMETERS_START(1,2)Z_PARAM_ARRAY(input)Z_PARAM_OPTIONALZ_PARAM_BOOL(preserve_keys)ZEND_PARSE_PARAMETERS_END();/* Initialize return array */array_init_size(return_value,zend_hash_num_elements(Z_ARRVAL_P(input)));if((HT_FLAGS(Z_ARRVAL_P(input))&HASH_FLAG_PACKED)&&!preserve_keys){zend_hash_real_init_packed(Z_ARRVAL_P(return_value));ZEND_HASH_FILL_PACKED(Z_ARRVAL_P(return_value)){ZEND_HASH_REVERSE_FOREACH_VAL(Z_ARRVAL_P(input),entry){if(UNEXPECTED(Z_ISREF_P(entry)&&Z_REFCOUNT_P(entry)==1)){entry=Z_REFVAL_P(entry);}Z_TRY_ADDREF_P(entry);ZEND_HASH_FILL_ADD(entry);}ZEND_HASH_FOREACH_END();}ZEND_HASH_FILL_END();}else{ZEND_HASH_REVERSE_FOREACH_KEY_VAL(Z_ARRVAL_P(input),num_key,string_key,entry){if(string_key){entry=zend_hash_add_new(Z_ARRVAL_P(return_value),string_key,entry);}else{if(preserve_keys){entry=zend_hash_index_add_new(Z_ARRVAL_P(return_value),num_key,entry);}else{entry=zend_hash_next_index_insert_new(Z_ARRVAL_P(return_value),entry);}}zval_add_ref(entry);}ZEND_HASH_FOREACH_END();}}/* }}} */PHP_FUNCTIONの定義はこちら
main/php.h
#define PHP_FUNCTION ZEND_FUNCTION
PHP_FUNCTION(array_reverse)
↓ZEND_FUNCTION(array_reverse)
ZEND_FUNCTIONの定義はこちら
Zend/zend_API.h
#define ZEND_FUNCTION(name) ZEND_NAMED_FUNCTION(zif_##name)
ZEND_FUNCTION(array_reverse)
↓ZEND_NAMED_FUNCTION(zif_array_reverse)
ZEND_NAMED_FUNCTIONの定義はこちら
Zend/zend_API.h
#define ZEND_NAMED_FUNCTION(name) void ZEND_FASTCALL name(INTERNAL_FUNCTION_PARAMETERS)
ZEND_NAMED_FUNCTION(zif_array_reverse)
↓void ZEND_FASTCALL zif_array_reverse(INTERNAL_FUNCTION_PARAMETERS)
ZEND_FASTCALLの定義はこちら
Zend/zend_portability.h
#if defined(__GNUC__) && ZEND_GCC_VERSION >= 3004 && defined(__i386__)
# define ZEND_FASTCALL __attribute__((fastcall))
#elif defined(_MSC_VER) && defined(_M_IX86) && _MSC_VER == 1700
# define ZEND_FASTCALL __fastcall
#elif defined(_MSC_VER) && _MSC_VER >= 1800 && !defined(__clang__)
# define ZEND_FASTCALL __vectorcall
#else
# define ZEND_FASTCALL
#endif
さっぱりわからないので elseだと思い込むことにする。
void ZEND_FASTCALL zif_array_reverse(INTERNAL_FUNCTION_PARAMETERS)
↓void zif_array_reverse(INTERNAL_FUNCTION_PARAMETERS)
INTERNAL_FUNCTION_PARAMETERSの定義はこちら
Zend/zend.h
#define INTERNAL_FUNCTION_PARAMETERS zend_execute_data *execute_data, zval *return_value
void zif_array_reverse(INTERNAL_FUNCTION_PARAMETERS)
↓void zif_array_reverse(zend_execute_data *execute_data, zval *return_value)