Reduced timeout in this test to 1ms, no need to wait further.

ext/standard/tests/file/fread_socket_variation1.phpt

@@ -1,15 +1,11 @@
 --TEST--
 Testing fread() on a TCP server socket
---SKIPIF--
-<?php
-if (getenv("SKIP_SLOW_TESTS")) die("skip slow test");
-?>
 --FILE--
 <?php
 
 $tcp_socket = stream_socket_server('tcp://127.0.0.1:31337');
 
-socket_set_timeout($tcp_socket, 1);
+socket_set_timeout($tcp_socket, 0, 1000);
 
 var_dump(fread($tcp_socket, 1));