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socket_read
Reads a maximum of length bytes from a socket
(PHP 4 >= 4.0.7, PHP 5)
string socket_read ( resource socket, int length [, int type] )
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 length parameter. Otherwise you can use \r, \n, or \0 to end reading (depending on the type parameter, see below).
- type
Optional type parameter is a named constant:
-
PHP_BINARY_READ(Default) - use the systemrecv()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.
socket_read() returns a zero length string ("") when there is no more data to read.