socket_read
socket_read
(PHP 4 >= 4.1.0, PHP 5, PHP 7)
socket_read — Reads a maximum of length bytes from a socket
Description
string socket_read ( resource $socket , int $length [, int $type = PHP_BINARY_READ ] )
The function socket_read() reads from the socket resource socket created by the socket_create() or socket_accept() functions.
Parameters
-
socket -
A valid socket resource created with socket_create() or socket_accept().
-
length -
The maximum number of bytes read is specified by the
lengthparameter. Otherwise you can use\r,\n, or\0to end reading (depending on thetypeparameter, see below). -
type -
Optional
typeparameter is a named constant:-
PHP_BINARY_READ(Default) - use the system recv() function. Safe for reading binary data. -
PHP_NORMAL_READ- reading stops at \n or \r.
-
Return Values
socket_read() returns the data as a string on success, or FALSE on error (including if the remote host has closed the connection). The error code can be retrieved with socket_last_error(). This code may be passed to socket_strerror() to get a textual representation of the error.
Note:
socket_read() returns a zero length string ("") when there is no more data to read.
See Also
- socket_accept() - Accepts a connection on a socket
- socket_bind() - Binds a name to a socket
- socket_connect() - Initiates a connection on a socket
- socket_listen() - Listens for a connection on a socket
- socket_last_error() - Returns the last error on the socket
- socket_strerror() - Return a string describing a socket error
- socket_write() - Write to a socket
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.socket-read.php
