<IfModule mod_rewrite.c>

RewriteEngine On
RewriteBase /
Redirect / http://www.new-address.com/
RewriteRule (.*) http://www.new-address.com/$1 [L]
</IfModule>

explanation :

RewriteBase /

* untuk menentukan folder aktif u/ rewrite tersebut

Redirect / http://www.new-address.com/
*meredirect request ke folder '/' , ke alamat baru

RewriteRule (.*) http://www.new-address.com/$1 [L]
* semua request di redirect ke alamat baru (plus parameter di belakangnya)

I found this in the internet when I need to custom my 404 page . Because the default 404 page from codeigniter is so ‘default’ .

When the application can not found the page requested, it handle by the Exceptions in the codeigniter , function show_404.

You can find the file in the ‘./libraries/Exceptions.php’ .

In order to create your own 404 page, you just need to override the function show_404($page = ”) .

How we do that ?

You just need to create a file named : ‘MY_Exceptions.php’ , and put it in the folder ‘./application/libraries’.

And the content of the file should be like this :

<?

	class MY_Exceptions extends CI_Exceptions{

	  	public function __construct(){
	      parent::__construct();
	    }

		function show_404($page = ''){
			redirect('404','refresh');  // you can change this with what you want
			exit;
		}
	}
?>

what  is difference between :

$_fx  = &$a ;

with

$_fx  = $a ;

The first one,  we call it parsing reference, and the second one , is parsing value.

you can see the difference with this sample :

<?</code></code>

<code><code> </code>

<code>echo "without reference: <BR>";
$a = 5;
$b = $a;

echo " a : 5<BR>";
echo '$b = $a <BR>';
echo "${b} = ${a} <BR>";

for($i=1;$i<5;$i++){
$b++;
echo "a(${a}) | b(${b}) <BR>";
}

echo "<BR><BR>";

echo "with reference (&amp;amp;amp;) : <br>";

$a = 5;
$b = &amp;amp;amp;$a;

echo " a : 5<BR>";
echo '$b = &amp;amp;amp;$a <BR>';
echo "${b} = ${a} <BR>";

for($i=1;$i<5;$i++){
$b++;
echo "a(${a}) | b(${b}) <BR>";
}

?>

</code>

</code>

<code><code>

as you can see, using ‘&’ , the value of $a is also changed .

so what I get is , if you using a reference, any changes you made on the reference variable ($b) will efect the real variable ($a)

Berguna u/ merename filename yg aneh2 atau hal2 lain :

<?</code>

<code> </code>

<code>$string = "d'edy adhie&amp;amp;%sdf\"ddd)(*)@#^$*(&amp;amp;)%sfsd.jpg";

echo "<BR><BR>";

echo "string asli : ".$string."<BR><BR>";

echo "sesudah convert : ".string_to_filename($string);

function string_to_filename($word) {

$pos = strrpos($word,".");

$ext = substr($word,$pos);

$wordToReplace = substr($word,0,$pos);

<span> </span>

<span> </span>// only replace the filename, exclude the extension

$tmp = preg_replace('/\W+|\W+/', '-', $wordToReplace); <span> </span>// remove all non-alphanumeric chars at begin &amp;amp; end of string

$tmp = preg_replace('/\s+/', '-', $tmp); <span> </span>// compress internal whitespace and replace with _

return strtolower(preg_replace('/\W-/', '-', $tmp)).$ext; <span> </span>// remove all non-alphanumeric chars except _ and -

}

</code>

<code>?>

hasil nya :

string asli : d’edy adhie&%sdf”ddd)(*)@#^$*(&)%sfsd.jpg

sesudah convert : d-edy-adhie-sdf-ddd-sfsd.jpg