function appendMulti(value,target){
    //Get old values from multiselect (they are an array)
	oldvalues= $(target).val();
	//We need to check if the multiselect is empty
	if(oldvalues){
        //It's not empty
		//Find the lenght of the array, the beauty of this is that since arrays starts from 0, this number will always be the next available slot
		key = value.length;
	} else {
        //It's empty
		//Initialize a new array and set the key to the first element
		var oldvalues = [];
		key = 0;
	}
	//Append new value to the array
	oldvalues[key] = value;
	//Set the new values
	$(target).val(oldvalues);

	return true;
}

You can call the function like this:

appendMulti('value','#multiselect');

I recently needed to send data using ajax to an MSSql 2000 database (which requires windows-1252).
As you may know javascript sends data encoded in utf-8 (utf-16 to be more precise), this must be accepted as a fact thus making the use of a php function to convert the encoding before sending to the database. Here is the snippet I use:

function convertor($array){
	if (is_array($array) && count($array) > 0){
		foreach ($array as $k => $v){
			$return[$k] = mb_convert_encoding($v, "iso-8859-1","UTF-8");
		}
	} elseif (!empty($array)) {
		$return = mb_convert_encoding($array, "iso-8859-1","UTF-8");
	} else {
		return false;
	}
	return $return;
}

Basically what it does is to check if we have an array or a single value then proceed to convert it to the desired encoding (in my case iso-8859-1), after converting the values these can be safely stored into the database.

I have also to add that I’ve encountered some jquery plugins that messes with the encoding of the strings. To be on the safe side you may use this line:

unescape(encodeURIComponent(string))

$.ajax({
   type: "POST", url: "somepage.php",
   success: function(html){$("#someDiv").html(html).dialog();}
});

The problem with this code is that it creates a new instance of dialog each time, basically adding a new dialog div in the html for each call.
Aside from being unable to reopen the dialog after closing it, your are replicating your ajax code several times across the webpage creating all sort of problems with the jquery selectors.

The jquery-ui docs do not expalin well this issue, so to avoid headache here is the correct code:

$(function() {
   $("#someDiv").dialog({ autoOpen: false });
});

then in the ajax call:

$.ajax({
   type: "POST", url: "somepage.php",
   success: function(html){$("#someDiv").html(html).dialog('open');}
});

$eu_countries = array(
  "AT" => "Austria",
  "BE" => "Belgium",
  "BG" => "Bulgaria",
  "CY" => "Cyprus",
  "CZ" => "Czech Republic",
  "DK" => "Denmark",
  "EE" => "Estonia",
  "FI" => "Finland",
  "FR" => "France",
  "DE" => "Germany",
  "GR" => "Greece",
  "HU" => "Hungary",
  "IE" => "Ireland",
  "IT" => "Italy",
  "LV" => "Latvia",
  "LT" => "Lithuania",
  "LU" => "Luxembourg",
  "MT" => "Malta",
  "NL" => "Netherlands",
  "PL" => "Poland",
  "PT" => "Portugal",
  "RO" => "Romania",
  "SK" => "Slovakia (Slovak Republic)",
  "SI" => "Slovenia",
  "ES" => "Spain",
  "SE" => "Sweden",
  "GB" => "United Kingdom"
);

source

phpbb3

• Create a user in the acp (for this example sake let’s use: adsense as username and adsense as password).
• Give him permission based on your forum structure, we advise to give him read-only access on the whole forum.

ad-sense

• go to the AdSense Setup tab, then click on the Site Authentication section.
• click on the add a login link
• Set it like this:
  • Restricted Directory or URL: the forum url (example: http://www.example.com/forum)
  • Authentication URL: the path to the ucp.php?mode=login file (example: http://www.example.com/forum/ucp.php?mode=login)
  • Authentication method: POST
  • Parameters: (you have to add them manually)
    • Attribute: login – Value: Login
    • Attribute: password – Value: userpassword (example: adsense)
    • Attribute: username – Value: username (example: adsense)
• Now click on: Test My Authentication URL to check if everything went ok

Hope this will help you

]]> http://0plus1.com/blog/2009/05/how-to-allow-ad-sense-bot-to-crawl-phpbb3-private-forums/feed/ 0 http://0plus1.com/blog/2009/05/print_r-output-beautifier/ http://0plus1.com/blog/2009/05/print_r-output-beautifier/#comments Wed, 13 May 2009 15:42:04 +0000 admin http://0plus1.com/blog/?p=9 Today I wrote a script that needed to manipulate several multidimensional arrays, some of them pretty deep.

The standard php function print_r is an hellish mess, browsing through the marvellous php.net documentation I’ve found several examples to beautify the output of print_r (just to give credit: “Bob” and “Everett” were my inspiration) since no one actually did it the way I wanted I made a custom one myself:

function print_rr($array){
    foreach($array as $key=>$value){
       if(is_array($value)){
          $id = md5(rand());
          echo '[<a href="#" onclick="return expandParent(\''.$id.'\')">'.$key.'</a>]<br />';
          echo '<div id="'.$id.'" style="display:none;margin:10px;border-left:1px solid; padding-left:5px;">';
          print_rr($value, $count);
          echo '</div>';
       } else {
       echo "<b>$key</b>: ".$value."<br />";
       }
    }
echo '<script language="Javascript">
function expandParent(id){toggle="block";if(document.getElementById(id).style.display=="block"){toggle="none"}document.getElementById(id).style.display=toggle};
</script>';
}

Feel free to use it anyway you like it.

]]> http://0plus1.com/blog/2009/05/print_r-output-beautifier/feed/ 0 http://0plus1.com/blog/2009/05/welcome/ http://0plus1.com/blog/2009/05/welcome/#comments Wed, 13 May 2009 14:27:02 +0000 admin http://0plus1.com/blog/?p=3 Welcome to the official blog from 0plus1.
]]> http://0plus1.com/blog/2009/05/welcome/feed/ 0