added a feature to test the internet connection status

this feature calls the gethostbyname() function to reach www.google.fr
and get its IP. If the function cannot get the IP we can change the
internet status

Author: MsieurPafi

phpwpinfo.php

@@ -38,31 +38,6 @@ function phpwpinfo() {
 	$info->init_all_tests();
 }
 
-function command_exists ($command) {
-	  $whereIsCommand = (PHP_OS == 'WINNT') ? 'where' : 'which';
-
-	  $process = proc_open(
-	    "$whereIsCommand $command",
-	    array(
-	      0 => array("pipe", "r"), //STDIN
-	      1 => array("pipe", "w"), //STDOUT
-	      2 => array("pipe", "w"), //STDERR
-	    ),
-	    $pipes
-	  );
-	  if ($process !== false) {
-	    $stdout = stream_get_contents($pipes[1]);
-	    $stderr = stream_get_contents($pipes[2]);
-	    fclose($pipes[1]);
-	    fclose($pipes[2]);
-	    proc_close($process);
-
-	    return $stdout != '';
-	  }
-
-	  return false;
-	}
-
 /**
  * TODO: Use or not session for save DB configuration
  */
@@ -167,16 +142,14 @@ public function test_versions() {
 			$this->html_table_row( 'MySQL Version', $this->mysqli_version, '-', 'Not available, needs credentials.', 'warning' );
 		}
 
-		//Test if the command 'git' exists, so it tests if Git is installed
-		if(command_exists('git') == 1){
-			$this->html_table_row('Presence of Git', 'No', 'Yes', 'Yes');
+		//Test if the server is connected to the server by attempt to find the IP(v4) of www.google.fr
+		if(gethostbyname('www.google.fr') != 'www.google.fr'){
+			$this->html_table_row('Internet connection', 'No', 'Yes', 'Yes', 'success');
 		}else{
-			$this->html_table_row('Presence of Git', 'No', 'Yes', 'No', 'error');
+			$this->html_table_row('Internet connection', 'No', 'Yes', 'No', 'error');
 		}
 
-		$this->html_table_close();
-	}
-
+		
 	public function test_php_extensions() {
 		$this->html_table_open( 'PHP Extensions', '', 'Required', 'Recommended','Current' );