Testing if a server is running with almost no permissions

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  • Simon
    #1

    Testing if a server is running with almost no permissions

    Hi,

    My webhost allows me to run php but no shell_execute(. ..), system(...) and
    so on.

    I am trying to get info from a site, the reply from the site is usually less
    than 1 second.

    I have tried

    fsockopen("http ://www.example.com ", 80, $errno, $errstr, 1);
    //and
    file( "http://www.example.com ")
    //
    fopen( ..., "r" );

    But that does not work

    according to php.net
    "Depending on the environment, the Unix domain or the optional connect
    timeout may not be available."

    I cannot change "Set_time_limit (...)" because I have no access to the
    php.ini file.

    So, how can i test for a website and have a 1 second timeout?

    Many thanks in advance.

    Simon


    Tags: None
    • Steve
      #2
      Re: Testing if a server is running with almost no permissions

      On Thu, 12 Jan 2006 12:56:14 +0000, Simon wrote:
      [color=blue]
      > Hi,
      >
      > My webhost allows me to run php but no shell_execute(. ..), system(...) and
      > so on.
      >
      > I am trying to get info from a site, the reply from the site is usually less
      > than 1 second.
      >
      > I have tried
      >
      > fsockopen("http ://www.example.com ", 80, $errno, $errstr, 1);
      > //and
      > file( "http://www.example.com ")
      > //
      > fopen( ..., "r" );
      >
      > But that does not work
      >
      > according to php.net
      > "Depending on the environment, the Unix domain or the optional connect
      > timeout may not be available."
      >
      > I cannot change "Set_time_limit (...)" because I have no access to the
      > php.ini file.
      >
      > So, how can i test for a website and have a 1 second timeout?
      >
      > Many thanks in advance.
      >
      > Simon[/color]

      Look at adding entries to control php configuration in your .htaccess
      file, and the ini_set()/init_get() functions.

      Steve

        Comment

        • Al
          #3
          Re: Testing if a server is running with almost no permissions

          As for the original question... If your server has cURL support, try
          using that:
          It works like fopen with URLs when that feature is disabled.

          I stole this from a firefox XML feed ticker code but here's the basic
          script:


          <?php

          function getResponse($ur l, $port, $timeout) {
          $ch = curl_init();

          curl_setopt($ch , CURLOPT_URL, $url);
          curl_setopt($ch , CURLOPT_HEADER, 0);
          curl_setopt($ch , CURLOPT_FOLLOWL OCATION, 1);
          curl_setopt($ch , CURLOPT_RETURNT RANSFER, 1);
          curl_setopt($ch , CURLOPT_FRESH_C ONNECT, 1);
          curl_setopt($ch , CURLOPT_TIMEOUT , $timeout);
          curl_setopt($ch , CURLOPT_PORT, $port);

          $data = curl_exec($ch);
          curl_close($ch) ;

          if ($data === NULL)
          return "Error"; // i assume this where you decide if the
          server's down or whatever you wanted to do

          return $data;
          }

          $infoFromSite = getResponse("ht tp://www.example.com/", 80, 25);

          echo
          "<html><hea d></head><body><pre >".htmlentities ($infoFromSite) ."</pre></body></html>";

          ?>

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