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pkSML

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Posts posted by pkSML

    [SOLVED] Time zones?

    in PHP Coding Help

    Posted

    You could store everything using unix time, which can be accessed by time();

     

    We'll say the user is GMT +500 and the original time is held in $orig_time, so format your date like this:

    echo date("l, F j, Y - G:i:s ", ($orig_time - (5*3600)));

    [SOLVED] Help with modifying & displaying text file

    in PHP Coding Help

    Posted

    More rather, you want to retrieve every line that does not begin with the pound sign.

     

    so...

    Read the file into an array - the file() function

    Make a foreach loop that reads the array

    (Put a variable in the foreach loop that will keep track of the track number)

    Put a conditional if statement that asks if the line begins with #

    If not, display the track number variable, increment it, and use pathinfo() to extract the filename for display

     

    Make sense?

    Losing data in array after button submit

    in PHP Coding Help

    Posted

    Glad you got it working. When working with more complex data (ie binary data or non-standard characters), serialize the array and make it a hidden form element. Then unserialize it and you'll have the original array in its perfect form.

     

    PS You may want to base64 the serialized data to make sure nothing is lost in the POST operation.

    Images in include files

    in PHP Coding Help

    Posted

    Can you use an absolute path to the images? If you're using relative URLs, that might make things get hairy.

     

    You could also use absolute paths relative to your docroot. Call the image like so: <img src="/images/whatever.png">

     

    This will look in docroot/images/ for the file. Make sense?

    [SOLVED] Odd Question but this is the best place to ask those :)

    in PHP Coding Help

    Posted

    You would need to know the exact context of the data you want. You could use preg_match to grab data between <table> and </table>.

    But what if there is more than one table in the page? Then you'd need preg_match_all() and know which table to grab. PHP is only as smart as you tell it to be. :)

     

    Also, is there a specific format that this data is you're trying to retrieve? That might make things easier.

    Is this data dynamic? Does it have a specific scheme? ...

     

    Any more information will help us help you. :)

    send image with mail function

    in PHP Coding Help

    Posted

    To do this the easy way, have your background available on the web. Then just create a simple HTML email.

     

    For example:

     

    <?php 
$from = "me@myhost.com";
$to = "you@yourhost.com";
$subject = "Hello!";

$headers = "From: {$from}\r\n"; 
$headers .= "MIME-Version: 1.0\r\n"; 
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n\r\n";

$message = '<HTML>
<HEAD>
<TITLE></TITLE>
</HEAD>
<BODY background="http://us.i1.yimg.com/us.yimg.com/i/us/sch/gr/bggreendiag.gif">

message goes here
<img height=1 width=1 src="http://pksml.net/blank.gif">
</BODY>
</HTML>';


//send message 
if (mail("$to", "$subject", "$message", "$headers"))
{echo "Mail sent!";} else {echo "Mail NOT sent!";}
?>

     

    Notice the background in the body tag of the HTML message.

     

    To show pictures, I found it necessary to place one in the body of the HTML, so I just put a blank transparent picture there.

    [SOLVED] Identify server that posted data. Is this possible?

    in PHP Coding Help

    Posted

    Yes I think that teh session will work for me.

     

    Let me make sure my thought behind it is correct though.

     

    At the top of my form to submit I will start a session and set some session variable to 'a value'

    on the script processing page before processing script i check if $_SESSION[somevar] == 'a value'

     

    Is that right?  I am at work right now and i cannot tranfer files up to my server in order to test it out.

     

    Also Sessions are new to me and I have only just read a couple of tutorials on them. Could anyone tell me how the server knows that the user has closed the browser. Or maybe a place were i can read up more on how sessions work  I like to have a good understanding of things before i put them in my code.

     

    At the top of the form page (before any output), you must have this PHP code:

    <?php
session_start();
$_SESSION['var'] = "your-form";
?>

    This type of session does not save data as a cookie, and is not a "persistent session". The session will automatically end when the user's browser is closed. By 'end', I mean the browser will not remember the session id any more.

     

    In the form processing script, put this at the very beginning:

    <?php
if (!isset($_SESSION['var'])) {die("You didn't use my form!");}
?>

     

    Links: http://pksml.net/search/php+sessions+tutorial

    Using php rewquest to display image

    in PHP Coding Help

    Posted

    Secure it? Yes. This is easy, actually!

     

    <?php
$folder = "./uploads/"; // Must have a trailing slash
$file = $_GET['I']; // Image number/name

$path_parts = pathinfo($file); // This will strip these: ../ ./

$filename = "{$folder}{$path_parts[basename]}";

if (!file_exists($filename)) {die("File doesn't exist.");}
else{
if ($path_parts[extension] == "jpg") {header('Content-type: image/jpeg'); // Output header}
elseif ($path_parts[extension] == "png") {header('Content-type: image/png'); // Output header}
elseif ($path_parts[extension] == "gif") {header('Content-type: image/gif'); // Output header}
elseif ($path_parts[extension] == "jpeg") {header('Content-type: image/jpeg'); // Output header}
header('Content-length: ' . filesize($filename)); 
readfile($filename); 
}
?>

     

    You'll need to put the extension in the query string for this to work.

     

    If you saved this script as image.php in your root WWW directory, here's how your HTML should look: 

    <img src="/image.php?I=000000004.jpg">

    Help ! i want to identify url written in text area and display it hyperlinked.

    in PHP Coding Help

    Posted

    stephen (pksml) nice code.....

     

    must also point out to all regular exsperesion users that preg_replace regex is the way foward becouse

    from php 6 the eregi function is turned off and preg function is defualt be warned.......

     

    why i tell you this becouse if u get a job in php your be confused why you can not use eregi in the future and

    trust me getting a free host or hoster to change there php.ini is very hard....

     

    this is only advise from me so learn preg regex oposed to eregi regex

     

    if you need to learn regex use a program called http://www.regexbuddy.com/ very good....

     

     

    Thanks for that bit of news (and the compliment:).

     

    I use http://www.snapfiles.com/get/regexcoach.html for Regex help. You might give it a try. Best of all, it's freeware!

    [SOLVED] Identify server that posted data. Is this possible?

    in PHP Coding Help

    Posted

    You can't reliably block the source from being viewed. The best option is to set a $_SESSION variable on your form page, then check for its existence on the process page. $_SERVER['HTTP_REFERER'] is unreliable at best as it can easily be spooked or not sent at all.

     

    I never thought of that before. Sessions are a great idea! And a session-based captcha would be a further security.

     

    Sessions *almost* guarantee your server originated the form that the user is submitting.

    Help ! i want to identify url written in text area and display it hyperlinked.

    in PHP Coding Help

    Posted

    Found this at the PHP manual: (modified for you)

     

    <?php
function hyperlink ($string) {
$string = preg_replace('#(^|\s)([a-z]+://([^\s\w/]?[\w/])*)#is', '\\1<a href="\\2">\\2</a>', $string);
$string = preg_replace('#(^|\s)((www|ftp)\.([^\s\w/]?[\w/])*)#is', '\\1<a href="http://\\2">\\2</a>', $string);
$string = preg_replace('#(^|\s)(([a-z0-9._%+-]+)@(([.-]?[a-z0-9])*))#is', '\\1<a href="mailto:\\2">\\2</a>', $string);
return $string;
}
?>

     

    It seems to work for all examples I've tried.

     

    PS I posted the code here --> http://code-bin.homedns.org/63 for permanent reference.

    Total Table Columns

    in PHP Coding Help

    Posted

    I should add the table structure...

     

     

    - Table structure for table `tblhours`
--

CREATE TABLE IF NOT EXISTS `tblhours` (
  `ID` int(10) NOT NULL auto_increment,
  `technician` char(30) NOT NULL,
  `client` char(50) NOT NULL,
  `hours` float NOT NULL,
  `mileage` tinyint(10) NOT NULL,
  `billable` varchar(10) NOT NULL,
  `nobillable` varchar(10) NOT NULL,
  `remote_bench` varchar(10) NOT NULL,
  `servicedate` date default NULL,
  PRIMARY KEY  (`ID`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

     

    We'll start with the basics and then this will be a lot easier.

    For each yes/no entry in your database, use the boolean data type.

     

    Change billable and remote_bench to BOOL NULL rather than varchar.

     

    You shouldn't need the column "nobillable", right?

     

    And when you're inputting all this data with your form, make billable and remote bench a checkbox. This will put the data in the db properly.

     

    Edit: Is remote_bench supposed to be either 'remote' or 'bench'?

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