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stockton

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Everything posted by stockton

  1. stockton
    Please tell me more. How would you code it to still call submit_click at the appropriate time ie when the Update button is clicked?
  2. stockton
    I have the following code in a html page and I need to know how to code the line starting <a href="events.php"....... to get it to work rather than call the onclick="submit_click() on the line above. The submit_click is obviously a JavaScript function that I do not want to run when the Back button is clicked. <input type=button value="Update" onclick="submit_click()"> <a href="events.php?EventID=0"><BUTTON TYPE="submit">Back</BUTTON></a>
  3. stockton
    If I had applied my mind to the problem before asking the question I would have realised that a semaphore cannot survive the program that created it. Therefore calling the program via Ajax was a bit thick. Semaphores are used to stop more than one user from running the same program at the same time.
  4. stockton
    Which line? If your query is the SQL line I would write it as follows. $c=mysql_query("SELECT * FROM `users` WHERE status='Alive' ORDER BY `users`.`health` ASC LIMIT 0, 10;");
  5. stockton
    I am attempting to set and clear semaphores from php code called via Ajax and the setting seems to be working but the clear fails with the following message. Warning: sem_release() [function.sem-release]: SysV semaphore 2 (key 0x6b) is not currently acquired The php I am using is:- <?php //This function takes a GUUID like one generated from the /usr/bin/uuidgen program //(e.g. ab684e1c-15fa-4241-aa53-65dd3bc55bd6) and strips out all the alpha- characters, //It will then add together all the numbers and return that for use as a VERY semi-unique key. //This is done this way for the fact that sem_get() (which is what this was written for) only takes integers for //the key value. function GUUIDtoInt($p_GUUID) { $retVal = 0; $stack = array(); for ($index = 0; $index < strlen($p_GUUID); $index++) { $char = $p_GUUID{$index}; if (is_numeric($char)) { array_push($stack, $char); } } $topChar = array_pop($stack); $decimalPower = 1; while ($topChar != NULL) { $temp = (int)$topChar; $retVal += $temp; $topChar = array_pop($stack); } return $retVal; } // Program starts here $Command = $_REQUEST["Command"]; $intKey = GUUIDtoInt('b6379c52-d96d-418b-83c3-8aedb5e6cf95'); echo "Testing semaphore code ".$Command." ".$intKey."<br/>"; if (!$sem_id = sem_get($intKey)) { $Message="Could not get ID for the semaphore."; echo $Message; exit; } if ($Command=="set") { $Message="Got semaphore ID; acquiring..."; if (!sem_acquire($sem_id)) { $Message.=" failed."; echo $Message; exit; } else { $Message.=" OK Got it.".$sem_id; echo $Message; exit; } } else { if (!sem_release($sem_id)) { $Message.=" Release for ".$sem_id." failed. ".$intKey; echo $Message; exit; } $Message="Semaphore released. Other scripts should be able to get it now."; echo $Message; exit; } ?> What am I not understanding and therefore have done wrong?
  6. stockton
    OK I missed your implied replace and have now done that and am getting the results I wanted. Thank you.
  7. stockton
    I have removed the " onSubmit='return false; " from the form definition in the html and now I get the final message but not those messages inbetween. The form definition now looks like:- <form action="semaphoreTest.php" method="get" name="SemaphoreTest" id="SemaphoreTest" > The messages I am also expecting but not getting are:- "Uninitialized........" "Loading........" "Loaded........" and "Interactive........" from the Diva.js script. BTW You can actually see the programs/scripts in action at http://www.stockton.co.za/semaphoreTest.html
  8. stockton
    Still nothing. Not even an alert from the submit_click() javascript function.
  9. stockton
    No it does not.
  10. stockton
    Theoretically I should see messages pop up in the HTML page but nothing occurs.
  11. stockton
    The following very simple scenario is not working for me. Please help. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html> <title>Test PHP Semaphore</title> <meta name="author" content="Alf Stockton"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="Mon, 22 Jul 2000 11:12:01 GMT"> <script language="JavaScript" type="text/javascript" src="js/Diva.js"></script> </head> <body> <center> <h2>Test PHP Semaphore</h2> </center> <form action="semaphoreTest.php" method="get" name="SemaphoreTest" id="SemaphoreTest" onSubmit='return false;' > <center> <input type=hidden name="submit1" id="submit1" value="<?php echo $Ding; ?>" > <P> <input type=submit value="Submit" onclick="submit_click()"> </p> <div id="Boodskap";></div> <!-- <input type=text readonly name="Boodskap" id="Boodskap" value ='<?php echo $Message ?>'>; --> </center> </FORM> </body> </html> <script language=javascript> function submit_click() { alert "submit_click()"; var bError = false; var strErrorMsg = ""; var Command = "semaphoreTest.php"; progExe(Command); return false; } the semaphoreTest.php looks like:- <?php { $intKey = GUUIDtoInt('b6379c52-d96d-418b-83c3-8aedb5e6cf95'); // echo "Testing semaphore code<br/>"; if (!$sem_id = sem_get($intKey)) { $Message="\nX\n\nCould not get ID for the semaphore."; echo $Message; exit; } else { $Message="\nX\n\nGot semaphore ID; acquiring..."; flush(); if (!sem_acquire($sem_id)) { $Message.=" failed."; echo $Message; exit; } else { $Message="\nX\n\nOK got it. Sleeping for 20 seconds, then releasing."; flush(); sleep(20); sem_release($sem_id); $Message.="Semaphore released. Other scripts should be able to get it now.";i echo $Message; exit; } } } ?> and the Diva.js is:- function getXMLHttpRequest () { try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) {}; try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) {}; try { return new XMLHttpRequest(); } catch(e) {}; return null; } // Make the XMLHttpRequest object var xhr = getXMLHttpRequest(); function progExe(CommandString) { xhr.open("GET", CommandString, true); xhr.onreadystatechange = ServerResponse; xhr.send(null); } function ServerResponse() { alert("entered ServerResponse()"); /* The full list of the readyState values is as follows: * 0 (uninitialized) * 1 (loading) * 2 (loaded) * 3 (interactive) * 4 (complete) */ if(xhr.readyState == 0) { document.getElementById("Boodskap").innerHTML = "Uninitialized........"; } else if(xhr.readyState == 1) { document.getElementById("Boodskap").innerHTML = "Loading........"; } else if(xhr.readyState == 2) { document.getElementById("Boodskap").innerHTML = "Loaded........"; } else if(xhr.readyState == 3) { document.getElementById("Boodskap").innerHTML = "Interactive........"; } else if(xhr.readyState == 4) { if (xhr.status == 200) { var parts = xhr.responseText.split("\n"); if (parts[1] == "X") { alert(parts[3]); } else window.location=parts[3]; document.getElementById("Boodskap").innerHTML = ""; } } }
  12. stockton
    I did not believe that enabling the "display_errors = on" in your php.ini will help show mssql messages and in fact when I tested your suggestion nothing changed. I still only get corbins suggested Error:
  13. stockton
    I'll try your suggestion even though I have the same version of mssql on my desktop as I have on my laptop and the desktop works fine.
  14. stockton
    Yes Enterprise Manager works perfectly.
  15. stockton
    As you suspected adding your code and now all I get is "Error. " host/username/password are all correct but I do not understand your "Like, you aren't trying to use localhost or something on the laptop are you?". If you mean am I browsing to localhost I am and the relationship between localhost and 127.0.0.1 is setup in my hosts file; did I mention that this system is on Windows. If you mean am I using localhost in my configuration file to point to the database, yes I am. and I am attempting to access the system(on my laptop) from my laptop.
  16. stockton
    I should have seen that. I am sorry to have wasted your time.
  17. stockton
    Please tell me what "ERROR 1305 (42000): FUNCTION dotproject.EFT does not exist" produced by the following means & how I fix it. mysql> SELECT LEFT(project_name,50) AS 'Project', -> /*== Decode Project Status == */ -> CASE project_status -> WHEN 1 THEN LEFT('Incoming/Approval',20) -> WHEN 2 THEN LEFT ('Planning',20) -> WHEN 3 THEN LEFT('In Progress',20) -> WHEN 4 THEN LEFT('QC/UAT',20) -> WHEN 5 THEN LEFT('Complete',20) -> WHEN 6 THEN LEFT('On Hold',20) -> WHEN 7 THEN EFT('Archived',20) -> END AS 'Status' -> from projects; ERROR 1305 (42000): FUNCTION dotproject.EFT does not exist
  18. stockton
    Unfortunately all that, that gives me is a blank screen.
  19. stockton
    I do have the client libraries on my laptop. I do have mssql extensions enabled in PHP.ini and MSSQL gives no error message that I am aware of. All I get is the "Unable to connect to T4T database" from my own code(see below) & I am aware of the die on the connect line and I have coded that many different ways but mssql refuses to share any error messages with me. $link = mssql_connect($servername, $dbusername, $dbpassword) or die("Unable to connect to T4T database"); if (!(mssql_select_db($dbname, $link))) { echo "Error in DBConnect() = " . mssql_get_last_message(); sprintf($Message, "At %d in %s Could not select %s at %s as %s",__LINE__, __FILE__, $dbname, $servername, $dbusername); trigger_error(E_USER_ERROR, $Message); exit; }
  20. stockton
    The following code consistently works on all PCs tried on except my laptop. Please give me some hints on why this may happen. global $dbservertype, $servername, $dbusername, $dbpassword, $dbname, $link; $link = mssql_connect($servername, $dbusername, $dbpassword) or die("Unable to connect to T4T database");
  21. stockton
    I am currently trying to install Track+ on my clients Ubuntu 8.04 server and as I am not a Java programmmer I am having issues. Track+ is a web based issue tracking software and project management software and the thought crossed my mind that there are probably alternatives products that are somewhat easier to install. Suggestions please.
  22. stockton
    I suspect that the problem is that the 1st program is not submitting a form but rather doing a call to the 2nd machine on a different server. Therefore the code should be altered as follows:- header("Location: http://motrain.dev.sharing.org.za/test/dong.php"); should now become :- header("Location: http://motrain.dev.sharing.org.za/test/dong.php?uname=$uname&passwd=$passwd"); and therefore the 2nd program should be altered to:- $uname = $_GET["uname"]; $passwd = $_GET["passwd"]; from:- $uname = $_POST["uname"]; $passwd = $_POST["passwd"]; This is all because session variables are only available on the 1st machine and any data required on the 2nd machine must be passed via $_GET rather than form submission.
  23. stockton
    I have created a program using the example at http://www.tizag.com/phpT/examples/formfinale.php as follows:- <?php /* * A program, written by Alf Stockton, to proove that it is possible to run * a program on a remote site from a program on this site, passing to the * remote program whatever parameters it requires to run successfully. * * This then for the Khulisa site, removes the requirement for memcache * or similar. */ ob_start(); if (!empty($_REQUEST['submit'])) $Button = ($_REQUEST['submit']); else $Button = ''; // echo "Button = ".$Button." ??"; if ($Button == 'Submit') { $Button = $_REQUEST['submit']; session_start(); ob_start(); $quote = 0x27; // authenticate. if (!get_magic_quotes_gpc()) { $_REQUEST['uname'] = addslashes($_REQUEST['uname']); } $uname = $_REQUEST['uname']; $passwd = strip_tags($_REQUEST['passwd']); $passwd = stripslashes($_REQUEST['passwd']); $date = date('Y-m-d H:i:s'); $_SESSION['Usrname'] = $uname; $_SESSION['Passwrd'] = $passwd; $_SESSION['Date'] = $date; header("Location: http://motrain.dev.sharing.org.za/test/dong.php"); } else if ($Button == 'Clear') // Clear Previous { $Ding = 0; $uname = ""; $passwd = ""; $date = ""; } ob_end_flush(); ?> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html> <head> <title>Login</title> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="Mon, 22 Jul 2000 11:12:01 GMT"> <script language="JavaScript" type="text/javascript" src="js/Diva.js"></script> </head> <BODY ONLOAD="BodyOnLoad()"> <form name='logon' id='logon' method='POST' action='<?php echo $PHP_SELF; ?>' > <table align="center" border="3" cellspacing="0" cellpadding="3"> <tr><td>Username:</td><td> <input type="text" name="uname" id="uname" maxlength="40"> </td></tr> <tr><td>Password:</td><td> <input type="password" name="passwd" id="passwd" maxlength="50"> </td></tr> <input type=hidden name="submit1" id="submit1" value="<?php echo $Ding; ?>" > </td></tr> </table> <center> <p> <input type="submit" name="submit" value="Submit"> <input type="submit" name="submit" value="Clear"> <input type="submit" name="submit" value="Back"> </p> </center> </form> </body> </html> <script type="text/javascript"> function BodyOnLoad() { document.logon.uname.focus(); } </script> I now need to retrieve the entered data via <?php $uname = $_POST["uname"]; $passwd = $_POST["passwd"]; ?> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html> <title>motrain's Test</title> <meta name="author" content="Alf Stockton"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="Mon, 22 Jul 2000 11:12:01 GMT"> </head> <h2>MOTRAIN's Test</h2> <center> Have a Good Day<?php echo " $uname with password $passwd." ?> </center> </body> </html> but do not get any data back. What have I done wrong?
  24. stockton
    Yes that is exactly what I am doing.
  25. stockton
    Is it possible to retrieve PHP session variables from a C or C++ cgi program? If so where should I start learning?
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