socket fails to read after two attempts

[ytt]

<?php

if (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {

echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";

}

if (socket_connect($sock, '127.0.0.1', 10000) === false) {

echo "socket_connect() failed: reason: " . socket_strerror(socket_last_error()) . "\n";

}

$msg = "test";

socket_write($sock, $msg, strlen($msg));

if (false === ($buf = socket_read($sock, 2048, PHP_NORMAL_READ))) {

echo "socket_read() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";

}

echo "response: $buf \n";

I am using this code to connect to a C socket server. Server is functioning without any problems with clients that are written by C. But when I use php client it hangs after 2 attempts at socket_read. First two results are good but after that it hangs at socket_read. What might be the main cause of this behavior I have no idea.

 

Any suggestions ?

 

[kicken]

21 minutes ago, ytt said:

What might be the main cause of this behavior I have no idea.

Probably not enough data on the socket to be read.  The read will block until it has read the number of bytes specified, or found a \n or \r line ending.  Try making it non-blocking and see if it works.

[ytt]

Problem occurs  as same even if I add \r\n to server's response or set the socket non blocking.