socket_write

socket_write

Write to a socket

 **socket_write** Socket $socket string $data  $length

The function writes to the from the given . socket_write``socket``data

socket

dataThe buffer to be written.

length The optional parameter can specify an alternate length of bytes written to the socket. If this length is greater than 's length, it is silently truncated to the length of . length``data``data

Returns the number of bytes successfully written to the socketreturn.falseforfailure. The error code can be retrieved with . This code may be passed to to get a textual explanation of the error. socket_last_error``socket_strerror

Opmerking: > It is perfectly valid for to return zero which means no bytes have been written. Be sure to use the operator to check for false in case of an error. socket_write``===

Opmerking: > does not necessarily write all bytes from . It's valid that, depending on the network buffers etc., only a certain amount of data, even one byte, is written despite being longer. A loop must be used to ensure that the rest of is transmitted. socket_write``data``data``data

socket_accept``socket_bind``socket_connect``socket_listen``socket_read``socket_strerror