array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'function.stream-set-read-buffer.php', 1 => 'stream_set_read_buffer', 2 => 'Set read file buffering on the given stream', ), 'up' => array ( 0 => 'ref.stream.php', 1 => 'Stream 函数', ), 'prev' => array ( 0 => 'function.stream-set-chunk-size.php', 1 => 'stream_set_chunk_size', ), 'next' => array ( 0 => 'function.stream-set-timeout.php', 1 => 'stream_set_timeout', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/stream/functions/stream-set-read-buffer.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

stream_set_read_buffer

(PHP 5 >= 5.3.3, PHP 7, PHP 8)

stream_set_read_buffer — Set read file buffering on the given stream

说明

stream_set_read_buffer(resource $stream, int $size): int

Sets the read buffer. It's the equivalent of stream_set_write_buffer(), but for read operations.

参数

stream

The file pointer.

size

The number of bytes to buffer. If size is 0 then read operations are unbuffered. This ensures that all reads with fread() are completed before other processes are allowed to read from that input stream.

返回值

Returns 0 on success, or another value if the request cannot be honored.

参见