Explode + url faking problem

[frizzle]

Hi there,

i have a site with fake folders & files.
htaccess rewrites everything to index.php?vars
now in index.php i decide what file to include with a switch/case
statement.

to define where i am, i explode the query string, and check $array[0]
where i am for the main section.
Only now if there are two slashes behind each other
(folder//subfolder), the value inbetween ( '' )
gets ignored, though in 'real' it would give an error. How can i have
explode telling
me that value is '' ?

I hope you understand (sorry for my english)

Frizzle.

[Toby Inkster]

frizzle wrote:

Only now if there are two slashes behind each other
(folder//subfolder)

Best thing is to make sure explode() never even sees that.

<?php
$url = 'folder//subfolder/////somefile';

while (strstr($url, '//'))
$url = str_replace('//', '/', $url);

$parts = explode('/', $url);

print $parts[0]; /* prints 'folder' */
print $parts[1]; /* prints 'subfolder' */
print $parts[2]; /* prints 'somefile' */
?>

--
Toby A Inkster BSc (Hons) ARCS
Contact Me ~ http://tobyinkster.co.uk/contact

[frizzle]

Toby Inkster wrote:

frizzle wrote:

Only now if there are two slashes behind each other
(folder//subfolder)

Best thing is to make sure explode() never even sees that.

<?php
$url = 'folder//subfolder/////somefile';

while (strstr($url, '//'))
$url = str_replace('//', '/', $url);

$parts = explode('/', $url);

print $parts[0]; /* prints 'folder' */
print $parts[1]; /* prints 'subfolder' */
print $parts[2]; /* prints 'somefile' */
?>

--
Toby A Inkster BSc (Hons) ARCS
Contact Me ~ http://tobyinkster.co.uk/contact

Well, i figured right now, explode ignores it, and goes past it.
The way you present it, is axactly what it does right now w/o any
str_repl().
What i'd like is to have $array[1] to be empry or null, etc.

I hope you get it.

Frizzle.

[Bent Stigsen]

frizzle wrote:

Toby Inkster wrote:

frizzle wrote:

Only now if there are two slashes behind each other
(folder//subfolder) Best thing is to make sure explode() never even sees that.

<?php
$url = 'folder//subfolder/////somefile';

while (strstr($url, '//'))
$url = str_replace('//', '/', $url);

$parts = explode('/', $url);

[snip] Well, i figured right now, explode ignores it, and goes past it.
The way you present it, is axactly what it does right now w/o any
str_repl().
Can you post an example of code that will do that. You must be doing
something else that removes the empty values.
What i'd like is to have $array[1] to be empry or null, etc.

That is what explode should give you, if you got nothing in between
two separators. If you take Toby's code without the while/str_replace,
then you should get:
Array
(
[0] => folder
[1] =>
[2] => subfolder
[3] =>
[4] =>
[5] =>
[6] =>
[7] => somefile
)
/Bent

[frizzle]

Bent Stigsen wrote:

frizzle wrote:

Toby Inkster wrote:

frizzle wrote:

Only now if there are two slashes behind each other
(folder//subfolder)
Best thing is to make sure explode() never even sees that.

<?php
$url = 'folder//subfolder/////somefile';

while (strstr($url, '//'))
$url = str_replace('//', '/', $url);

$parts = explode('/', $url);

[snip]

Well, i figured right now, explode ignores it, and goes past it.
The way you present it, is axactly what it does right now w/o any
str_repl().

Can you post an example of code that will do that. You must be doing
something else that removes the empty values.

What i'd like is to have $array[1] to be empry or null, etc.

That is what explode should give you, if you got nothing in between
two separators. If you take Toby's code without the while/str_replace,
then you should get:
Array
(
[0] => folder
[1] =>
[2] => subfolder
[3] =>
[4] =>
[5] =>
[6] =>
[7] => somefile
)
/Bent

function DefineLoc(){
$loc = explode('/', $_SERVER['QUERY_STRING'], ) );
return $loc;
};

The function worked that way for me. Also, when i had trailing slashes,
the current location would differ from w/o any trailing slashes.

Now i have this:
function DefineLoc(){
$loc = explode('/', trim( $_SERVER['QUERY_STRING'], '/' ) );
return $loc;
};

But that's also not as it should be but fixes the trailing problem.

Frizzle.

[Bent Stigsen]

frizzle wrote:
[snip]

Now i have this:
function DefineLoc(){
$loc = explode('/', trim( $_SERVER['QUERY_STRING'], '/' ) );
return $loc;
};

But that's also not as it should be but fixes the trailing problem.

I don't think I quite understand what you want.

Can you give an example value of $_SERVER['QUERY_STRING'], and how the
array returned from DefineLoc should look like.
/Bent

[frizzle]

Bent Stigsen wrote:

frizzle wrote:
[snip]

Now i have this:
function DefineLoc(){
$loc = explode('/', trim( $_SERVER['QUERY_STRING'], '/' ) );
return $loc;
};

But that's also not as it should be but fixes the trailing problem.

I don't think I quite understand what you want.

Can you give an example value of $_SERVER['QUERY_STRING'], and how the
array returned from DefineLoc should look like.
/Bent

$_SERVER['QUERY_STRING'] =
'/artists/nirvana/mtv_unplugged/about_a_girl.html'
$array[0] => artists
$array[1] => nirvana
$array[2] => mtv_unplugged
$array[3] => about_a_girl.html

$_SERVER['QUERY_STRING'] = '/artists/nirvana/mtv_unplugged/'
$array[0] => artists
$array[1] => nirvana
$array[2] => mtv_unplugged
$array[3] => NULL

$_SERVER['QUERY_STRING'] = '/artists/nirvana/mtv_unplugged'
$array[0] => artists
$array[1] => nirvana
$array[2] => mtv_unplugged
$array[3] => NULL

$_SERVER['QUERY_STRING'] = '/artists//mtv_unplugged/'
$array[0] => artists
$array[1] => NULL
$array[2] => mtv_unplugged
$array[3] => NULL

I hope you understand what i mean/want.

Frizzle.

[Bent Stigsen]

frizzle wrote:
[snip]

$_SERVER['QUERY_STRING'] = '/artists/nirvana/mtv_unplugged'
$array[0] => artists
$array[1] => nirvana
$array[2] => mtv_unplugged
$array[3] => NULL

[snip]

This one above is your real problem. You would need some mechanism to
determine what kind last element is, file or part of path. A lazy way
could be to set the criteria or just make the assumption that files
always has an attached extension (i.e. '.' in the name).

For instance:
function DefineLoc(){
$loc = explode('/', trim( $_SERVER['QUERY_STRING'], '/' ) );
if (strrpos(end($loc), '.')===false) $loc[] = null;
reset($loc);
return $loc;
};

If you have pathnames containing '.', then you would have to write
some code that can make the distinction.

/Bent

[frizzle]

Bent Stigsen wrote:

frizzle wrote:
[snip]

$_SERVER['QUERY_STRING'] = '/artists/nirvana/mtv_unplugged'
$array[0] => artists
$array[1] => nirvana
$array[2] => mtv_unplugged
$array[3] => NULL

[snip]

This one above is your real problem. You would need some mechanism to
determine what kind last element is, file or part of path. A lazy way
could be to set the criteria or just make the assumption that files
always has an attached extension (i.e. '.' in the name).

For instance:
function DefineLoc(){
$loc = explode('/', trim( $_SERVER['QUERY_STRING'], '/' ) );
if (strrpos(end($loc), '.')===false) $loc[] = null;
reset($loc);
return $loc;
};

If you have pathnames containing '.', then you would have to write
some code that can make the distinction.

/Bent

Actually what i have is quite similar to what you suggest. But it still
doesn't solve my double slash problem, where the value should be NULL.

The thingy i have to check if a filename is specified is the following:

if( preg_match( '/(\.html)$/', $loc[3] ) ){
$song_url = preg_replace( '/(\.html)$/', '', $loc[3] );
$song_extension = TRUE;
}else{
$song_extension = FALSE;
};

It checks all values in the array are UrlSafe(), wich means that they
are A-z, 0-9, -, _ That's also why i delete the last '.html', because
else validation would return false.

Frizzle.

[Toby Inkster]

frizzle wrote:

$_SERVER['QUERY_STRING'] = '/artists//mtv_unplugged/'
$array = explode('/', $_SERVER['QUERY_STRING']);
array_shift($array);
for ($i=0;$i<4;$i++)
if (!strlen($array[$i]))
$array[$i] = 'NULL';
$array[0] => artists
$array[1] => NULL
$array[2] => mtv_unplugged
$array[3] => NULL

--
Toby A Inkster BSc (Hons) ARCS
Contact Me ~ http://tobyinkster.co.uk/contact

[Bent Stigsen]

frizzle wrote:

Bent Stigsen wrote:

frizzle wrote:
[snip]

$_SERVER['QUERY_STRING'] = '/artists/nirvana/mtv_unplugged'
$array[0] => artists
$array[1] => nirvana
$array[2] => mtv_unplugged
$array[3] => NULL

[snip]

This one above is your real problem. You would need some mechanism to
determine what kind last element is, file or part of path. A lazy way
could be to set the criteria or just make the assumption that files
always has an attached extension (i.e. '.' in the name).

For instance:
function DefineLoc(){
$loc = explode('/', trim( $_SERVER['QUERY_STRING'], '/' ) );
if (strrpos(end($loc), '.')===false) $loc[] = null;
reset($loc);
return $loc;
};

If you have pathnames containing '.', then you would have to write
some code that can make the distinction.

/Bent

Actually what i have is quite similar to what you suggest. But it still
doesn't solve my double slash problem, where the value should be NULL.

If I run this:
$url = '/artists//mtv_unplugged/';
$loc = explode('/', trim( $url, '/' ) );
if (strrpos(end($loc), '.')===false) $loc[] = null;
print_r($loc);

I get:
Array
(
[0] => artists
[1] =>
[2] => mtv_unplugged
[3] =>
)

Isn't that what you want?
/Bent

[snip]

[the DtTvB]

Let me guess it, you did mod_rewite
RewriteRule ^/(.+?)$ index.php?$1

Is that what you want?
<?php
$requested_page = $_SERVER['QUERY_STRING'];
$requested_page = preg_replace('~/+~', '/', $requested_page);
$requested_tree = explode('/', $requested_page);
?>

I tested with
http://localhost/test5.php?folder///...der///yo///lol and it said
that
$requested_tree is Array (
[0] => folder
[1] => subfolder
[2] => yo
[3] => lol
)

[frizzle]

the DtTvB wrote:

Let me guess it, you did mod_rewite
RewriteRule ^/(.+?)$ index.php?$1

Is that what you want?
<?php
$requested_page = $_SERVER['QUERY_STRING'];
$requested_page = preg_replace('~/+~', '/', $requested_page);
$requested_tree = explode('/', $requested_page);
?>

I tested with
http://localhost/test5.php?folder///...der///yo///lol and it said
that
$requested_tree is Array (
[0] => folder
[1] => subfolder
[2] => yo
[3] => lol
)

I have mod-rewrite:

RewriteBase /testfolder/
RewriteRule ^(index\.php)$ - [L]
RewriteRule ^(img|swf|js|css)/.*$ - [L]
RewriteRule ^(.*)$ index.php?$1 [L]

But this also still gives me problems as stated on
http://groups.google.com/group/alt.a...d6bc52b4feece4

Frizzle.