php

simple code to shuffle a table ... with php shuffle:

$result = $mysql->query("SELECT id FROM $table ORDER BY id");
$rows = $result->num_rows;
$order = shuffle(range(1,$rows));
while($row=$result->fetch_row()) {
  $num=array_shift($order);
  $mysql->query("UPDATE $table SET rand_sort=$num WHERE id=".$row[0]);
}

added:
with MySQL RAND():

$result = $mysql->query("SELECT id FROM $table ORDER BY RAND()");
for($i=1;$row=$result->fetch_row();$i++) {
  $mysql->query("UPDATE $table SET rand_sort=$i WHERE id=".$row[0]);
}

This is my way to organize php for a simple jQuery frontend ajax based:

1.in a administration page include the php that generate html for each box
2.for each box setup behavior in Javascript
3.let each php manage POST request (for change/update) and GET request for show content

So in admin.php we could have something like that

<img src=”button.png” id=”btn_change” />

I found this in a server:

$header = "From: <".$_REQUEST['email'].">\n";
#... 
mail($from,$subjet,$message,$header);

$_REQUEST['email'] came from a form input ...

Here $_REQUEST['email'] should be, at least, stripped by all \n no matter on how you trust to js code..

$from = $_REQUEST['email'];
$from = str_replace("\n","",$from);
$header = "From: <$from>\n";

2 simple class for sitemap:

http://www.smartango.com/files/sitemap.txt

simple use:

$root = $_SERVER['DOCUMENT_ROOT'];
$sm = new SiteMap($root,'sitemap-1.xml');
$sm->start();
$http = "http://www.example.com";
$sm->addUrl($http."/file.html");
$sm->end();

...SiteMapIdx similar