help to filtering something

[c00sm1n]

Hy, i made the following code to filter something , its working but i dont know to make it work without the //// you will see if you run it this,

http://localhost/test.php?f=FILTER1-A//////////
http://localhost/test.php?f=FILTER1-...LTER4-B///////
thanks and i hope u give me a hint

<?php

$string = $_GET['f'];
$pieces = explode("/", $string);

$a = array(
''.$pieces[0].'',
''.$pieces[1].'',
''.$pieces[2].'',
''.$pieces[3].'',
''.$pieces[4].'',
''.$pieces[5].'',
''.$pieces[6].'',
''.$pieces[7].'',
''.$pieces[8].'',
''.$pieces[9].'');


$sql = "SELECT *  FROM `products` WHERE `FILTER` LIKE '%..%'". "\r\n";

$i = 0;
foreach ($a as $v) 
{
    $sql .= "AND `FILTER` LIKE '%$v%'" . "\r\n";
    $i++;
}
$sql .= ";" . "\r\n";

if($pieces[0]==""){$f1 ="/";} else { $f1 = "".$pieces[0]."/"; }
if($pieces[1]==""){$f2="/";} else { $f2 = "".$pieces[1]."/"; }
if($pieces[2]==""){$f3="/";} else { $f3 = "".$pieces[2]."/"; }
if($pieces[3]==""){$f4="/";} else { $f4 = "".$pieces[3]."/"; }
if($pieces[4]==""){$f5="/";} else { $f5 = "".$pieces[4]."/"; }
if($pieces[5]==""){$f6="/";} else { $f6 = "".$pieces[5]."/"; }
if($pieces[6]==""){$f7="/";} else { $f7 = "".$pieces[6]."/"; }
if($pieces[7]==""){$f8="/";} else { $f8 = "".$pieces[7]."/"; }
if($pieces[8]==""){$f9="/";} else { $f9 = "".$pieces[8]."/"; }
if($pieces[9]==""){$f10="/";} else { $f10 = "".$pieces[9]."/"; }




?>
<a href="?f=FILTER1-A/<?=$f2?><?=$f3?><?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER1-A</a>
<a href="?f=FILTER1-B/<?=$f2?><?=$f3?><?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER1-B</a>
<a href="?f=FILTER1-C/<?=$f2?><?=$f3?><?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER1-C</a>
<a href="?f=<?=$f1?>FILTER2-A/<?=$f3?><?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER2-A</a>
<a href="?f=<?=$f1?>FILTER2-B/<?=$f3?><?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER2-B</a>
<a href="?f=<?=$f1?>FILTER2-C/<?=$f3?><?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER2-C</a>
<a href="?f=<?=$f1?><?=$f2?>FILTER3-A/<?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER3-A</a>
<a href="?f=<?=$f1?><?=$f2?>FILTER3-B/<?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER3-B</a>
<a href="?f=<?=$f1?><?=$f2?>FILTER3-C/<?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER3-C</a>
<a href="?f=<?=$f1?><?=$f2?><?=$f3?>FILTER4-A/<?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER4-A</a>
<a href="?f=<?=$f1?><?=$f2?><?=$f3?>FILTER4-B/<?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER4-B</a>
<a href="?f=<?=$f1?><?=$f2?><?=$f3?>FILTER4-C/<?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>">FILTER4-C</a>


<?
if($pieces[1]!=""){
?>
<a href="?f=<?=$f1?>/<?=$f3?><?=$f4?><?=$f5?><?=$f6?><?=$f7?><?=$f8?><?=$f9?><?=$f10?>"><font color="red"><?=$f2?></font></a>
<? } ?>

[CrazyChop]

Not sure what is your intend, but you can pass an array through query string like this

script.php?a[]=0&a[]=1&b[attempts]=0&b[userid]=1234 

This saves all the filtering...

And for the second part:

$a = array(
''.$pieces[0].'',
''.$pieces[1].'',
''.$pieces[2].'',
''.$pieces[3].'',
''.$pieces[4].'',
''.$pieces[5].'',
''.$pieces[6].'',
''.$pieces[7].'',
''.$pieces[8].'',
''.$pieces[9].''); 

How can you be sure that there are 10? better to count the number of elements in $pieces and do a loop.

$a = array();
for ($i = 0; $ i < count($pieces); i++)
   a.push($pieces[i]) 

You never did execute the sql. Is that relevant to the problem?

if($pieces[0]==""){$f1 ="/";} else { $f1 = "".$pieces[0]."/"; }
if($pieces[1]==""){$f2="/";} else { $f2 = "".$pieces[1]."/"; }
if($pieces[2]==""){$f3="/";} else { $f3 = "".$pieces[2]."/"; }
if($pieces[3]==""){$f4="/";} else { $f4 = "".$pieces[3]."/"; }
if($pieces[4]==""){$f5="/";} else { $f5 = "".$pieces[4]."/"; }
if($pieces[5]==""){$f6="/";} else { $f6 = "".$pieces[5]."/"; }
if($pieces[6]==""){$f7="/";} else { $f7 = "".$pieces[6]."/"; }
if($pieces[7]==""){$f8="/";} else { $f8 = "".$pieces[7]."/"; }
if($pieces[8]==""){$f9="/";} else { $f9 = "".$pieces[8]."/"; }
if($pieces[9]==""){$f10="/";} else { $f10 = "".$pieces[9]."/"; } 

Shouldn't the various $f variables be blank IF the pieces are empty?

[c00sm1n]

i dont think u understand, i want to make somethink like this , i have 4 filter for exemple , first filter have the variables (blue, green,red) , second (10cm,20cm,30cm) ..., and if i select the second filter to 30cm the link looks like ..script.php?filter=30cm/ , if i want the first filter and to keep the second the link should look like this script.php?filter=blue/30cm/ .. if i want to select the third filter and to keep the first and the second the link should look like this script.php?filter=blue/30cm/thirdfilter/ (blue - first filter, 30cm - second filter, thirdfilter - third filter) and so long .. and the option to remove a filter , if i want to remove the second filter the link should look like this script.php?filter=blue/thirdfilter/ , basicly i dont know how to make the link and to remove a variable from link, thanks for helping me and sorry for my english.