Podręcznik PHP
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# php_stream_read

(no version information, might be only in CVS)

php_stream_read -- Read a number of bytes from a stream into a buffer

## Description

size_t php_stream_read ( php_stream * stream, char * buf, size_t count)

php_stream_read() reads up to `count` bytes of data from `stream` and copies them into the buffer `buf`.

php_stream_read() returns the number of bytes that were read successfully. There is no distinction between a failed read or an end-of-file condition - use php_stream_eof() to test for an `EOF`.

The internal position of the stream is advanced by the number of bytes that were read, so that subsequent reads will continue reading from that point.

If less than `count` bytes are available to be read, this call will block (or wait) until the required number are available, depending on the blocking status of the stream. By default, a stream is opened in blocking mode. When reading from regular files, the blocking mode will not usually make any difference: when the stream reaches the `EOF` php_stream_read() will return a value less than `count`, and 0 on subsequent reads.

Poprzedni | Spis treści | Następny
php_stream_open_wrapper | Początek rozdziału | php_stream_write