KevinSmithDesigns

I've had a lot of requests to turn some of my Twitter apps into mobile services. Most companies, like Twitter itself, use Short Codes (like 40404) to accept and send txt/sms messages. Short codes are very expensive (the cheapest solution I found started at $500 per month for a randomized short code of up to 8 digits). I knew there had to be a "poor man's" way around buying a short code so I made one using PHP and IMAP.

I've only had around 200 people use it thus far but it seems to be working nicely. It's rough and can use a lot more work, but that's up to you.
You need to setup an email address for mobile users to send their messages to (I suggest m@yourdomain.com for simplicity).

 
<?php
$mail=@imap_open("HOST","USERNAME","PASSWORD") or die("Can't connect: " . imap_last_error());
 
$mails=imap_num_msg($mail);
if($mails==0) { die('No new texts.'); } else {
	echo "There are $mails new texts";
	for($i=1;$i<=$mails;$i++) {
		$chead=imap_headerinfo($mail,$i);
		$mid=ltrim($chead->Msgno);
		/* Attempt to remove some of the garb headers and such that
		some providers and phones send with messages */
		$tweet = substr(imap_body($mail,$mid), 0, 144);
		list($tweet, $trash) = split('[=]', $tweet);
		list($tweet, $trash) = split('Sent from', $tweet);
 
		//Now that we have the message from the user's phone, send out a return message.
		$from1 = $chead->from; //1 due to the probability of having a $from var already defined in your script.
		foreach ($from1 as $id => $object) {
			$toaddress = $object->mailbox . "@" . $object->host;
		}
 
		//Send the text message
		echo "Message Received: $tweet  Send to $toaddress";
		mail("$toaddress", "Your message receipt!", "Your tweet has been received.");
		echo "
<hr />";
	}
}
 
imap_close($mail);
?>
 

The only hitch is that some phones don't allow users to input symbols, or sometimes even letteres, into the to box for a text message. There's a way around that, too (if your users only think to do it). They simply need to add your email address as a contact prior to creating the message. It's the matter of simply selecting a contact to send the message to, then.

Another way around this is to send the message to the provider's SMS email gateway (I don't know all, but AT&T's is 36245). Then, in the body of the message, type "m@yourdomain.com MESSAGE HERE". The provider will automatically strip the email address from the start of the txt and send the message, minus the email address at the beginning, to said email address.

It's the long way around and I'm sure there is a simpler solution. This is my solution and it works fine for what I need it to do.

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A friend needed to push/send items from an RSS feed to his Twitter account.

Here's the code in a nice .zip file. Very simple and rough, but it gets the job done nicely. Feel free to add to/modify.
http://kevinsmithdesigns.com/blog/wp-content/uploads/KSDtwitter.zip

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Update: To prevent any confusion the code highlighter might cause in the post, I added a plain text version of this post here.
I noticed a lot of sites allow user submitted content but prevent autolinking of urls. Some of the most common instances of this are on Twitter sites (much like my own creation: SecretTweet.com). So I threw together a function to autolink urls:

 
<?
$text= 'Hey go to google.com moo http://google.com moo www.google.com moo http://wwww.google.com/404.php moo';
function linkify(&$text)
{
//CONVERT *://.* TO LINK (EG HTTP://KEVINSMITHDESIGNS.COM)
$text = ereg_replace("[a-zA-Z]+://([.]?[a-zA-Z0-9_/-])*", "\\0", $text);
//CONVERT *://*.* TO LINK (EG HTTP://WWW.KEVINSMITHDESIGNS.COM)
$text = ereg_replace("(^| )(www([.]?[a-zA-Z0-9_/-])*)", "\\1\\2", $text);
return $text;
}
echo linkify($text);
?>
 

Would return "Hey go to google.com moo http://google.com moo www.google.com moo http://wwww.google.com/404.php moo".

And since I made this primarily for Twitter, the following will linke @ replies automatically, too:

 
<?
$tweet = "Hey @mozunk! Go check out http://digsby.com -- I think you will like it.";
function twitterify(&$tweet) {
//CONVERT *://.* TO LINK (EG HTTP://KEVINSMITHDESIGNS.COM)
$tweet = ereg_replace("[a-zA-Z]+://([.]?[a-zA-Z0-9_/-])*", "\\0", $tweet);
//CONVERT *://*.* TO LINK (EG HTTP://WWW.KEVINSMITHDESIGNS.COM)
$tweet = ereg_replace("(^| )(www([.]?[a-zA-Z0-9_/-])*)", "\\1\\2", $tweet);
//LINK @USERNAME
$tweet = preg_replace('/([\.|\,|\:|\¡|\¿|\>|\{|\(]?)@{1}(\w*)([\.|\,|\:|\!|\?|\>|\}|\)]?)\s/i', "$1@$2$3 ", $tweet);return $tweet;
}
echo twitterify(&$tweet);
?>
 

Would return "Hey @mozunk! Go check out http://digsby.com -- I think you will like it."

I'll be implementing this into SecretTweet pretty soon. I haven't decided if I want to autolink URLs or not...maybe just @replies.
---
automatically link urls php
autolink @ replies Twitter automatically link php

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What we're doing: turning the .php extension into .whatever
Why we're doing this: security, seo, or because you want to (then you'll have to answer why for yourself)
How to do this:

In your .htaccess file, we're going to tell apache to parse your choice of a single or multiple .whatevers as php.
So if we wanted to parse .html files as php, we would do something like this:

AddType application/x-httpd-php .html

And if we wanted to parse .bunnyboyfoofoo files as .php:

AddType application/x-httpd-php .bunnyboyfoofoo

And if we wanted to parse .bunnyboyfoofoo, .html, .htm, .py, .kevinsmith, .google files through php:

AddType application/x-httpd-php .bunnyboyfoofoo .html .htm .py .kevinsmith .google

Simple and fun to play with if you're that type of person.

PS:  Sorry it has been so long since my last update...it's summer, I've been enjoying it.

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Just to compare two of the different ways to effectively do a proper redirect...

PHP:
(old.php)

<?
header ('HTTP/1.1 301 Moved Permanently');
header('Location: http://kevinsmithdesigns.com/new.php');
exit;
?>

.HTACCESS

 
Redirect 301 /old.php http://www.kevinsmithdesigns.com/new.php
 

--------------
I much prefer .htaccess so you can delete old.php and keep track of all redirects via one file (.htaccess).
.htaccess is also probably the safest way to redirect (if you're the SEO conscious type)

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Strip all symbols and other non a-z, 1-0 characters from a string using the handy-dandy ereg_replace.

<?php
$before= "First !@#$%^&amp;*() Middle _+:?&gt;&lt;|}  Last";
$after= ereg_replace("[^A-Za-z0-9] ", "", $before);
echo $after
?>
 

And the output would be:
"First Middle Last"

---
This is very basic but I see a lot of people going about this the long way around with snippets that are 10-15 lines long (when they only need to be one)...

EDIT!:

Aken pointed out a mistake I made.

I had ereg_replace("[^A-Za-z0-9]", "", $before); when it should be ereg_replace("[^A-Za-z0-9] ", "", $before); (so that spaces are also not allowed). I have corrected the code above. I'm only human :/

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I started on this last night around 10pm and had the basic code finished around midnight. It's fairly simple (and yes, another Twitter application): a user goes to www.SecretTweet.com and types in a secret. Their secret "tweet" is then published to @secrettweet. It's kind of like postsectret but for Twitter. I might add some features to it in the future...it all depends on the popularity.

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If a user inputs information that generates an error OR if he/she leaves a field blank, save them time (and increase your turnover) by using sticky forms. It's so simple and improves usability so much...

Let's say we're collecting first and last names (to keep it simple):

 
form.php
<?php
if (isset($_POST['submitted'])) {
 
		// Print the results.
		echo '
<h1>Your Name:</h1>
 
First: ' . $_POST['first'] . ' Last: ' . $_POST['last'] . '
 
';
 
	} else { // Invalid submitted values.
		echo '
<h1>Error!</h1>
 
Please enter a valid name.
 
';
	}
?>
<h2>Your Name</h2>
<form action="form.php" method="post">
 
First:
<input type="text" name="first" size="30" maxlength="40" value="<?php if (isset($_POST['first'])) echo $_POST['first']; ?>" />
 
Last:
<input type="text" name="last" size="30" maxlength="40" value="<?php if (isset($_POST['last'])) echo $_POST['last']; ?>" />
<input type="submit" name="submit" value="Submit!" />
<input type="hidden" name="submitted" value="TRUE" />
</form>
 

So, if a user inputs a first name but no last name (or last but no first), it will show whatever the user has already typed (and preventing them from having to type it again)...if the form is lengthy, this is very handy and such a time saver.

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Multidimensional arrays are basically arrays within arrays. So, let's make one.

 
<?
//Our first array is going to be for dairy products:
$dairy = array(1 =&gt; 'Milk','Cheese','Yogurt');//Our second array is going to be for animals:
$animals = array(1 =&gt; 'Cow','Duck','Horse','Chicken');
 
//Now let's pretend we wanted to combine these arrays (I should've chosen something like Months and Years or States and Territories...but I'm sticking with dairy products and farm animals ;) ....)
$combined = array('Dairy' =&gt; $dairy, 'Animals' =&gt; $animals);
 
//Idea: This is the best way to categorize interests for personalized profiles etc....
//Echoing what we've just done...
echo "I want to echo Cow!  {$combined['animals']['Cow']}";
 
?>

Of course, if you're just wanting to echo Cow, just use echo "Cow";...but if you're building things from arrays like drop down menus or if you're collecting interests, this is helpful.

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I started a sideproject called Voolia a few weeks ago so I could send multiple urls through Twitter. After getting it to a stable state (meaning it functions perfectly for what I want to do lol), I just left it alone. I checked the stats on it today to find that it has been getting some attention from random websites...pretty neat.

You might be surprised at how simple the base of the site is. It's under 50 line (counting empty lines and comments!) ...check it out:

 
<?
//define vars
$links = $_POST["links"];
$email = $_POST["email"];
$dateadded = date('Y/n/j');
 
//build callsign
// Notice that I don't user lowercase l and the number 1....too easily mistaken for eachother.
function createsign() { $chars = "abcdefghijkmnopqrstuvwxyz023456789ABCDEFGHIJKMNOPQRSTUVWXYZ";
srand((double)microtime()*1000000); $i = 0; $pass = '' ;
while ($i <= 2) { $num = rand() % 33; $tmp = substr($chars, $num, 1);
$pass = $pass . $tmp; $i++; } return $pass;}
$callsign = createsign();
 
//Check if callsign already exists...
 $q2 = mysql_query("SELECT * FROM links WHERE callsign='$callsign'");
   $q3 = mysql_fetch_object($q2);
    if($q3->callsign == $callsign) {
$callsign = createsign(); //do it again
}
 
//insert vars
$insertlinksquery = "INSERT INTO links (links, dateadded, email, hits, ip, callsign) VALUES ('$links', '$dateadded', '$email', '0', '".$_SERVER['REMOTE_ADDR']."', '$callsign')";
$runinsertlinksquery = mysql_query($insertlinksquery) or die(mysql_error());
 
//now do a foreach and insert each url within the murl as $callsign+1;
//first, we pull up what we just insertted ...i need to make this more efficient!
$result = mysql_query("SELECT * FROM links WHERE callsign='$callsign1'");
$row = mysql_fetch_array($result);
$linksrow = $row['links'];
 
$i = 0;
$chunks = spliti ("
", $links, 100);
//print_r($chunks);
foreach ($chunks as $value) {
if($value == "") { $newstring = "http://voolia.com"; $cliprow = "http://voolia.com"; } //get rid of empty links from bookmarklet and replace with voolia.com for kicks and giggles
$i++;
$individualcallsign = "$callsign$i";
$insertindividual = "INSERT INTO links (links, dateadded, email, hits, ip, callsign) VALUES ('$value', '$dateadded', '$email', '0', '".$_SERVER['REMOTE_ADDR']."', '$individualcallsign')";
$runinsertindividual = mysql_query($insertindividual) or die(mysql_error());
}
?>
 

Isn't that amazingly simple?...I think so. With just a tiny bit of .htaccess manipulation, you can have your own url redirection service....I find these handy.

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