PHP Manual
FFI
Creates a C data structure

FFI::new

(PHP 7 >= 7.4.0)

FFI::new — Creates a C data structure

说明

public static FFI::new ( mixed $type [, bool $owned = TRUE [, bool $persistent = FALSE ]] ) : FFI\CData

public FFI::new ( mixed $type [, bool $owned = TRUE [, bool $persistent = FALSE ]] ) : FFI\CData

Creates a native data structure of the given C type. If this method is called statically, it must only use predefined C type names (e.g. int, char, etc.); if the method is called as instance method, any type declared for the instance is allowed.

Warning

本函数还未编写文档，仅有参数列表。

参数

type: type is a valid C declaration as string, or an instance of FFI\CType which has already been created.
owned: Whether to create owned (i.e. managed) or unmanaged data. Managed data lives together with the returned FFI\CData object, and is released when the last reference to that object is released by regular PHP reference counting or GC. Unmanaged data should be released by calling FFI::free(), when no longer needed.
persistent: Whether to allocate the C data structure permanently on the system heap (using malloc()), or on the PHP request heap (using emalloc()).

返回值

Returns the freshly created FFI\CData object.

php ffi c data handles php ffi main interface to c code and data php eventbufferevent creates a new ssl buffer event to send its data over an ssl on a socket php evloop creates evfork watcher object associated with the current event loop instance php ffi creates an unmanaged pointer to c data php ffi dynamically constructs a new c array type php ffi creates a new ffi object php ffi releases an unmanaged data structure php ffi creates a c data structure php ffi gets the size of c data or types php ffi creates a php string from a memory area php ffi creates an ffi ctype object from a c declaration php cubrid 过时的别名和函数 read data from a glo instance and save it in a file php libevent 函数 read data from a buffered event php semaphore 函数 set information in the message queue data structure php semaphore 函数 returns information from the message queue data structure php rrd 函数 creates image from a data php session 函数 perform session data garbage collection php swoole 函数 write data to a file stream asynchronously php sdo das relational 函数 creates an instance of a relational data access service