diff --git a/src/Php/Constants.php b/src/Php/Constants.php
new file mode 100644
index 00000000..1a556308
--- /dev/null
+++ b/src/Php/Constants.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace PhpAot\Php;
+
+class Constants
+{
+    const array CPP_RESERVED_NAMES = [
+        'auto',
+        'break',
+        'case',
+        'catch',
+        'class',
+        'struct',
+        'const',
+        'continue',
+        'default',
+        'do',
+        'else',
+        'elseif',
+        'enum',
+        'extends',
+        'final',
+        'finally',
+        'for',
+        'function',
+        'global',
+        'if',
+        'int',
+        'double',
+        'float',
+        'false',
+        'for',
+        'if',
+        'int',
+        'new',
+        'null',
+        'or',
+        'and',
+        'private',
+        'protected',
+        'public',
+        'return',
+        'static',
+        'pipe',
+        'errno', // Linux error code
+    ];
+}
\ No newline at end of file
diff --git a/src/Php/Translator.php b/src/Php/Translator.php
index d668b207..07943d85 100644
--- a/src/Php/Translator.php
+++ b/src/Php/Translator.php
@@ -57,45 +57,7 @@ class Translator extends \PhpAot\Core\Translator
         'php_func_decl.h',
     ];
 
-    private array $reservedNames = [
-        'auto',
-        'break',
-        'case',
-        'catch',
-        'class',
-        'struct',
-        'const',
-        'continue',
-        'default',
-        'do',
-        'else',
-        'elseif',
-        'enum',
-        'extends',
-        'final',
-        'finally',
-        'for',
-        'function',
-        'global',
-        'if',
-        'int',
-        'double',
-        'float',
-        'false',
-        'for',
-        'if',
-        'int',
-        'new',
-        'null',
-        'or',
-        'and',
-        'private',
-        'protected',
-        'public',
-        'return',
-        'static',
-        'pipe',
-     ];
+    private array $reservedNames;
 
     private array $unsupportedFunctions = [
         'compact',
@@ -1978,7 +1940,7 @@ class Translator extends \PhpAot\Core\Translator
 
     private function parseConstFetch(Node $expr): string
     {
-        if ($expr->name->getType() != 'Name') {
+        if ($expr->name->getType() != 'Name' and !($expr->name instanceof Node\Name\FullyQualified)) {
             abort($expr);
         }
         $name = $this->parseIdentifier($expr->name);
@@ -1991,6 +1953,8 @@ class Translator extends \PhpAot\Core\Translator
             return 'true';
         } elseif ($name === 'false') {
             return 'false';
+        } elseif ($name === 'PHP_EOL') {
+            return '"' . $this->escapeString(PHP_EOL) . '"';
         }
         return 'php::constant("' . $name . '")';
     }
@@ -2035,7 +1999,7 @@ class Translator extends \PhpAot\Core\Translator
 
     private function escapeVarName(string $name): string
     {
-        if (in_array($name, $this->reservedNames)) {
+        if (in_array($name, Constants::CPP_RESERVED_NAMES)) {
             return '_php__var__' . $name;
         } else {
             return $name;
diff --git a/tests/std/dir/scandir_basic.phpt b/tests/std/dir/scandir_basic.phpt
new file mode 100644
index 00000000..d86aa291
--- /dev/null
+++ b/tests/std/dir/scandir_basic.phpt
@@ -0,0 +1,63 @@
+--TEST--
+Test scandir() function : basic functionality
+--FILE--
+<?php
+/*
+ * Test basic functionality of scandir()
+ */
+
+echo "*** Testing scandir() : basic functionality ***\n";
+
+// include file.inc for create_files function
+include (__DIR__ . '/../file/file.inc');
+
+// set up directory
+$directory = __DIR__ . '/scandir_basic';
+mkdir($directory);
+create_files($directory, 3);
+
+echo "\n-- scandir() with mandatory arguments --\n";
+var_dump(scandir($directory));
+
+echo "\n-- scandir() with all arguments --\n";
+$sorting_order = SCANDIR_SORT_DESCENDING;
+$context = stream_context_create();
+var_dump(scandir($directory, $sorting_order, $context));
+
+delete_files($directory, 3);
+?>
+--CLEAN--
+<?php
+$directory = __DIR__ . '/scandir_basic';
+rmdir($directory);
+?>
+--EXPECT--
+*** Testing scandir() : basic functionality ***
+
+-- scandir() with mandatory arguments --
+array(5) {
+  [0]=>
+  string(1) "."
+  [1]=>
+  string(2) ".."
+  [2]=>
+  string(9) "file1.tmp"
+  [3]=>
+  string(9) "file2.tmp"
+  [4]=>
+  string(9) "file3.tmp"
+}
+
+-- scandir() with all arguments --
+array(5) {
+  [0]=>
+  string(9) "file3.tmp"
+  [1]=>
+  string(9) "file2.tmp"
+  [2]=>
+  string(9) "file1.tmp"
+  [3]=>
+  string(2) ".."
+  [4]=>
+  string(1) "."
+}
diff --git a/tests/std/misc/exec_basic1.phpt b/tests/std/misc/exec_basic1.phpt
new file mode 100644
index 00000000..db26e73b
--- /dev/null
+++ b/tests/std/misc/exec_basic1.phpt
@@ -0,0 +1,33 @@
+--TEST--
+exec, system, passthru  — Basic command execution functions
+--SKIPIF--
+<?php
+// If this does not work for Windows, please uncomment or fix test
+// if(substr(PHP_OS, 0, 3) == "WIN") die("skip not for Windows");
+?>
+--FILE--
+<?php
+$cmd = "echo abc\n\0command";
+try {
+    var_dump(exec($cmd, $output));
+} catch (\ValueError $e) {
+    echo $e->getMessage() . \PHP_EOL;
+}
+try {
+    var_dump(system($cmd, $output));
+} catch (\ValueError $e) {
+    echo $e->getMessage() . \PHP_EOL;
+}
+try {
+    var_dump(passthru($cmd, $output));
+} catch (\ValueError $e) {
+    echo $e->getMessage() . \PHP_EOL;
+}
+?>
+--EXPECT--
+string(3) "abc"
+abc
+string(3) "abc"
+abc
+NULL
+
diff --git a/tests/std/misc/syslog_basic.phpt b/tests/std/misc/syslog_basic.phpt
new file mode 100644
index 00000000..f73d950c
--- /dev/null
+++ b/tests/std/misc/syslog_basic.phpt
@@ -0,0 +1,11 @@
+--TEST--
+Basic syslog test
+--FILE--
+<?php
+openlog('phpt', LOG_NDELAY | LOG_PID, LOG_USER);
+
+syslog(LOG_WARNING, 'Basic syslog test');
+
+closelog();
+?>
+--EXPECT--
diff --git a/tests/std/misc/time_nanosleep_basic.phpt b/tests/std/misc/time_nanosleep_basic.phpt
new file mode 100644
index 00000000..3f20b00f
--- /dev/null
+++ b/tests/std/misc/time_nanosleep_basic.phpt
@@ -0,0 +1,25 @@
+--TEST--
+time_nanosleep — Delay for a number of seconds and nanoseconds
+--SKIPIF--
+<?php if (!function_exists('time_nanosleep')) die("skip");
+if (getenv("SKIP_SLOW_TESTS")) die("skip slow test");
+?>
+--CREDITS--
+Àlex Corretgé - alex@corretge.cat
+--FILE--
+<?php
+$nano = time_nanosleep(2, 100000);
+
+if ($nano === true) {
+    echo "Slept for 2 seconds, 100 milliseconds.\n";
+} elseif ($nano === false) {
+    echo "Sleeping failed.\n";
+} elseif (is_array($nano)) {
+    $seconds = $nano['seconds'];
+    $nanoseconds = $nano['nanoseconds'];
+    echo "Interrupted by a signal.\n";
+    echo "Time remaining: $seconds seconds, $nanoseconds nanoseconds.";
+}
+?>
+--EXPECT--
+Slept for 2 seconds, 100 milliseconds.
diff --git a/tests/std/network/bindto.phpt b/tests/std/network/bindto.phpt
new file mode 100644
index 00000000..749103db
--- /dev/null
+++ b/tests/std/network/bindto.phpt
@@ -0,0 +1,18 @@
+--TEST--
+Test invalid bindto
+--FILE--
+<?php
+$ctx = stream_context_create([
+    'socket' => [
+        'bindto' => 'invalid',
+    ],
+]);
+$fp = stream_socket_client(
+    'tcp://www.' . str_repeat('x', 100) . '.com:80',
+    $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $ctx
+);
+?>
+--EXPECTF--
+Warning: %s: php_network_getaddresses: getaddrinfo for www.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.com failed: %s in %s
+
+Warning: %s: Unable to connect to tcp://www.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.com:80 (php_network_getaddresses: getaddrinfo for %s failed: %s) in %s
diff --git a/tests/std/network/closelog_basic.phpt b/tests/std/network/closelog_basic.phpt
new file mode 100644
index 00000000..d52e55ae
--- /dev/null
+++ b/tests/std/network/closelog_basic.phpt
@@ -0,0 +1,15 @@
+--TEST--
+Test closelog() function : basic functionality
+--FILE--
+<?php
+echo "*** Testing closelog() : basic functionality ***\n";
+
+// Zero arguments
+echo "\n-- Testing closelog() function with Zero arguments --\n";
+var_dump( closelog() );
+?>
+--EXPECT--
+*** Testing closelog() : basic functionality ***
+
+-- Testing closelog() function with Zero arguments --
+bool(true)
diff --git a/tests/std/network/fsockopen_basic.phpt b/tests/std/network/fsockopen_basic.phpt
new file mode 100644
index 00000000..1ee1f621
--- /dev/null
+++ b/tests/std/network/fsockopen_basic.phpt
@@ -0,0 +1,54 @@
+--TEST--
+Test fsockopen() function : basic functionality
+--FILE--
+<?php
+echo "*** Testing fsockopen() : basic functionality ***\n";
+
+echo "Open a server socket\n";
+
+for ($i=0; $i<100; $i++) {
+  $port = rand(10000, 65000);
+  /* Setup socket server */
+  $server = @stream_socket_server("tcp://127.0.0.1:$port");
+  if ($server) {
+    break;
+  }
+}
+
+// Initialise all required variables
+$hostname = 'tcp://127.0.0.1'; // loopback address
+$errno = null;
+$errstr = null;
+$timeout = 1.5;
+
+echo "\nCalling fsockopen() with all possible arguments:\n";
+$client = fsockopen($hostname, $port, $errno, $errstr, $timeout);
+var_dump($client);
+fclose($client);
+
+echo "\nCalling fsockopen() with mandatory arguments:\n";
+$second_client = fsockopen($hostname, $port);
+var_dump($second_client);
+fclose($second_client);
+
+echo "\nCalling fsockopen() with address and port in same string:\n";
+$address = $hostname . ':' . $port;
+$third_client = fsockopen($address);
+var_dump($third_client);
+fclose($third_client);
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing fsockopen() : basic functionality ***
+Open a server socket
+
+Calling fsockopen() with all possible arguments:
+resource(%d) of type (stream)
+
+Calling fsockopen() with mandatory arguments:
+resource(%d) of type (stream)
+
+Calling fsockopen() with address and port in same string:
+resource(%d) of type (stream)
+Done
diff --git a/tests/std/network/fsockopen_error.phpt b/tests/std/network/fsockopen_error.phpt
new file mode 100644
index 00000000..1f908e0b
--- /dev/null
+++ b/tests/std/network/fsockopen_error.phpt
@@ -0,0 +1,41 @@
+--TEST--
+Test fsockopen() function : error conditions
+--FILE--
+<?php
+echo "*** Testing fsockopen() : basic error conditions ***\n";
+
+echo "\n-- Attempting to connect to a non-existent socket --\n";
+$hostname = 'tcp://127.0.0.1'; // loopback address
+$port = 31337;
+$errno = null;
+$errstr = null;
+$timeout = 1.5;
+var_dump( fsockopen($hostname, $port, $errno, $errstr, $timeout) );
+var_dump($errstr);
+
+echo "\n-- Attempting to connect using an invalid protocol --\n";
+$hostname = 'invalid://127.0.0.1'; // loopback address
+$port = 31337;
+$errno = null;
+$errstr = null;
+$timeout = 1.5;
+var_dump( fsockopen($hostname, $port, $errno, $errstr, $timeout) );
+var_dump($errstr);
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing fsockopen() : basic error conditions ***
+
+-- Attempting to connect to a non-existent socket --
+
+Warning: %s: Unable to connect to tcp://127.0.0.1:31337 (%a) in %s
+bool(false)
+string(%d) "%a"
+
+-- Attempting to connect using an invalid protocol --
+
+Warning: %s: Unable to connect to invalid://127.0.0.1:31337 (Unable to find the socket transport "invalid" - did you forget to enable it when you configured PHP?) in %s
+bool(false)
+string(100) "Unable to find the socket transport "invalid" - did you forget to enable it when you configured PHP?"
+Done
diff --git a/tests/std/network/fsockopen_variation1.phpt b/tests/std/network/fsockopen_variation1.phpt
new file mode 100644
index 00000000..bb1b0f15
--- /dev/null
+++ b/tests/std/network/fsockopen_variation1.phpt
@@ -0,0 +1,38 @@
+--TEST--
+testing fsockopen without a protocol string
+--FILE--
+<?php
+
+echo "Open a server socket\n";
+for ($i=0; $i<100; $i++) {
+  $port = rand(10000, 65000);
+  /* Setup socket server */
+  $server = @stream_socket_server("tcp://127.0.0.1:$port");
+  if ($server) {
+    break;
+  }
+}
+
+echo "\nCalling fsockopen() without a protocol in the hostname string:\n";
+$hostname = '127.0.0.1';
+$client = fsockopen($hostname, $port);
+var_dump($client);
+fclose($client);
+
+echo "\nCalling fsockopen() with address and port in same string, without a protocol:\n";
+$address = $hostname . ':' . $port;
+$second_client = fsockopen($address);
+var_dump($second_client);
+fclose($second_client);
+
+echo "Done";
+?>
+--EXPECTF--
+Open a server socket
+
+Calling fsockopen() without a protocol in the hostname string:
+resource(%d) of type (stream)
+
+Calling fsockopen() with address and port in same string, without a protocol:
+resource(%d) of type (stream)
+Done
diff --git a/tests/std/network/fsockopen_variation2.phpt b/tests/std/network/fsockopen_variation2.phpt
new file mode 100644
index 00000000..262ae0ba
--- /dev/null
+++ b/tests/std/network/fsockopen_variation2.phpt
@@ -0,0 +1,48 @@
+--TEST--
+testing fsockopen() with udp sockets
+--FILE--
+<?php
+
+$hostname = 'udp://127.0.0.1';
+$port = '31337';
+
+echo "Open a server socket\n";
+$server = stream_socket_server($hostname . ':' . $port, $errno, $errstr, STREAM_SERVER_BIND);
+
+echo "\nCalling fsockopen():\n";
+$client = fsockopen($hostname, $port);
+var_dump($client);
+
+echo "\nPass some data between the sockets:\n";
+fwrite($client, "0123456789");
+var_dump(fread($server, 10));
+fclose($client);
+
+echo "\nCalling fsockopen() with address and port in same string:\n";
+$address = $hostname . ':' . $port;
+$second_client = fsockopen($address);
+var_dump($second_client);
+
+echo "\nPass some data between the sockets:\n";
+fwrite($second_client, "0123456789");
+var_dump(fread($server, 10));
+fclose($second_client);
+
+echo "Done";
+
+?>
+--EXPECTF--
+Open a server socket
+
+Calling fsockopen():
+resource(%d) of type (stream)
+
+Pass some data between the sockets:
+string(10) "0123456789"
+
+Calling fsockopen() with address and port in same string:
+resource(%d) of type (stream)
+
+Pass some data between the sockets:
+string(10) "0123456789"
+Done