++zend_ini_startup++。初始化与php.ini解析相关的变量。
//Zend/zend_ini.c ZEND_API int zend_ini_startup(void) /* {{{ */ { registered_zend_ini_directives = (HashTable *) malloc(sizeof(HashTable)); EG(ini_directives) = registered_zend_ini_directives; EG(modified_ini_directives) = NULL; EG(error_reporting_ini_entry) = NULL; zend_hash_init_ex(registered_zend_ini_directives, 128, NULL, free_ini_entry, 1, 0); return SUCCESS; } 1.7、zend_register_list_destructors_ex函数初始化析构函数
//Zend/zend_list.c ZEND_API int zend_register_list_destructors_ex(rsrc_dtor_func_t ld, rsrc_dtor_func_t pld, const char *type_name, int module_number) { zend_rsrc_list_dtors_entry *lde; zval zv; lde = malloc(sizeof(zend_rsrc_list_dtors_entry)); lde->list_dtor_ex = ld; lde->plist_dtor_ex = pld; lde->module_number = module_number; lde->resource_id = list_destructors.nNextFreeElement; lde->type_name = type_name; ZVAL_PTR(&zv, lde); if (zend_hash_next_index_insert(&list_destructors, &zv) == NULL) { return FAILURE; } return list_destructors.nNextFreeElement-1; } 1.8、php_binary_init函数获取PHP执行的二进制路径
static void php_binary_init(void) { char *binary_location; #ifdef PHP_WIN32 binary_location = (char *)malloc(MAXPATHLEN); if (GetModuleFileName(0, binary_location, MAXPATHLEN) == 0) { free(binary_location); PG(php_binary) = NULL; } #else if (sapi_module.executable_location) { binary_location = (char *)malloc(MAXPATHLEN); if (!strchr(sapi_module.executable_location, 'http://www.likecs.com/')) { char *envpath, *path; int found = 0; ...... } 1.9、php_output_register_constants函数初始化输出相关的预定义常量
//main/output.c PHPAPI void php_output_register_constants(void) { REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_START", PHP_OUTPUT_HANDLER_START, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_WRITE", PHP_OUTPUT_HANDLER_WRITE, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_FLUSH", PHP_OUTPUT_HANDLER_FLUSH, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_CLEAN", PHP_OUTPUT_HANDLER_CLEAN, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_FINAL", PHP_OUTPUT_HANDLER_FINAL, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_CONT", PHP_OUTPUT_HANDLER_WRITE, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_END", PHP_OUTPUT_HANDLER_FINAL, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_CLEANABLE", PHP_OUTPUT_HANDLER_CLEANABLE, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_FLUSHABLE", PHP_OUTPUT_HANDLER_FLUSHABLE, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_REMOVABLE", PHP_OUTPUT_HANDLER_REMOVABLE, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_STDFLAGS", PHP_OUTPUT_HANDLER_STDFLAGS, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_STARTED", PHP_OUTPUT_HANDLER_STARTED, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("PHP_OUTPUT_HANDLER_DISABLED", PHP_OUTPUT_HANDLER_DISABLED, CONST_CS | CONST_PERSISTENT); } 1.10、php_rfc1867_register_constants函数注册文件上传相关的预定义常量
//main/rfc1867.c void php_rfc1867_register_constants(void) /* {{{ */ { REGISTER_MAIN_LONG_CONSTANT("UPLOAD_ERR_OK", UPLOAD_ERROR_OK, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("UPLOAD_ERR_INI_SIZE", UPLOAD_ERROR_A, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("UPLOAD_ERR_FORM_SIZE", UPLOAD_ERROR_B, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("UPLOAD_ERR_PARTIAL", UPLOAD_ERROR_C, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("UPLOAD_ERR_NO_FILE", UPLOAD_ERROR_D, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("UPLOAD_ERR_NO_TMP_DIR", UPLOAD_ERROR_E, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("UPLOAD_ERR_CANT_WRITE", UPLOAD_ERROR_F, CONST_CS | CONST_PERSISTENT); REGISTER_MAIN_LONG_CONSTANT("UPLOAD_ERR_EXTENSION", UPLOAD_ERROR_X, CONST_CS | CONST_PERSISTENT); } 1.11、php_init_config函数初始化配置文件php.ini，并通过zend_parse_ini_file解析。
1.12、zend_register_standard_ini_entries函数初始化ini相关的变量
void zend_register_standard_ini_entries(void) /* {{{ */ { int module_number = 0; REGISTER_INI_ENTRIES(); } 1.13、php_startup_auto_globals函数注册我们熟知的全局变量$_GET、$_POST、$_COOKIE等等
//main/php_variables.c void php_startup_auto_globals(void) { zend_register_auto_global(zend_string_init("_GET", sizeof("_GET")-1, 1), 0, php_auto_globals_create_get); zend_register_auto_global(zend_string_init("_POST", sizeof("_POST")-1, 1), 0, php_auto_globals_create_post); zend_register_auto_global(zend_string_init("_COOKIE", sizeof("_COOKIE")-1, 1), 0, php_auto_globals_create_cookie); zend_register_auto_global(zend_string_init("_SERVER", sizeof("_SERVER")-1, 1), PG(auto_globals_jit), php_auto_globals_create_server); zend_register_auto_global(zend_string_init("_ENV", sizeof("_ENV")-1, 1), PG(auto_globals_jit), php_auto_globals_create_env); zend_register_auto_global(zend_string_init("_REQUEST", sizeof("_REQUEST")-1, 1), PG(auto_globals_jit), php_auto_globals_create_request); zend_register_auto_global(zend_string_init("_FILES", sizeof("_FILES")-1, 1), 0, php_auto_globals_create_files); } 1.14、php_startup_sapi_content_types函数