(PHP 4 >= 4.3.2, PHP 5)
streamWrapper::stream_read — Read from stream
$count
)This method is called in response to fread() and fgets().
Замечание:
Remember to update the read/write position of the stream (by the number of bytes that were successfully read).
count
How many bytes of data from the current position should be returned.
If there are less than count
bytes available, return as many as are available. If no
more data is available, return either FALSE
or an
empty string.
Вызывает ошибку уровня
E_WARNING
, если вызов к этому методу не удался
(например, не реализован).
Замечание:
If the return value is longer then
count
anE_WARNING
error will be emitted, and excess data will be lost.
Замечание:
streamWrapper::stream_eof() is called directly after calling streamWrapper::stream_read() to check if EOF has been reached. If not implemented, EOF is assumed.
When reading the whole file (for example, with file_get_contents()), PHP will call streamWrapper::stream_read() followed by streamWrapper::stream_eof() in a loop but as long as streamWrapper::stream_read() returns a non-empty string, the return value of streamWrapper::stream_eof() is ignored.