Filtering the page with xml - php

Question

I want to filter websites using xml depending on whether the values are contained in it or not. I have such a script and I don't know why, but it filters well once, not, can anyone advise me something?
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE note SYSTEM "Note.dtd">
<filter>
<min_szerokosc>111</min_szerokosc>
<min_wysokosc>111</min_wysokosc>
<min_glebokosc>111</min_glebokosc>
<max_szerokosc>1111</max_szerokosc>
<max_wysokosc>1111</max_wysokosc>
<max_glebokosc>1111</max_glebokosc>
<typ>power&free</typ>
<myjnia_automat>1</myjnia_automat>
<kabina_automat>1</kabina_automat>
<transport_gorny>1</transport_gorny>
<extra></extra>
</filter>
<?php
$cat=new Kategoria;
$kat=array(205,233,234,206,204,203,202);
//$kat=array(206);
foreach($_POST as $k => $v){
if($v=="on"){
$_POST[$k]=1;
}
}
foreach($kat as $a => $b){
$result=$cat->getKategoria($b);
//print_r($_POST);
foreach($result as $res => $val){
if(preg_match("/tab_[0-9]{1,2}_filter/i",$res)>0){
//print_r($val);
$xml = simplexml_load_string($val);
if($xml){
if($_POST['typ'] == $xml->typ){
if($_POST['min_szerokosc'] <= $xml->min_szerokosc &&
$_POST['min_wysokosc'] <= $xml->min_wysokosc &&
$_POST['min_glebokosc'] <= $xml->min_glebokosc &&
$_POST['max_szerokosc'] <= $xml->max_szerokosc &&
$_POST['max_wysokosc'] <= $xml->max_wysokosc &&
$_POST['max_glebokosc'] <= $xml->max_glebokosc &&
$_POST['myjnia_automat'] == $xml->myjnia_automat ||
$_POST['myjnia_reczna'] == $xml->myjnia_reczna ||
$_POST['wanna'] == $xml->wanna &&
$_POST['kabina_automat'] == $xml->kabina_automat ||
$_POST['kabina_jedno_stanowiskowa'] == $xml->kabina_jedno_stanowiskowa ||
$_POST['kabina_dwu_stanowiskowa'] == $xml->kabina_dwu_stanowiskowa &&
$_POST['transport_gorny'] == $xml->transport_gorny ||
$_POST['transport_dolny'] == $xml->transport_dolny){
print "true:{$b}:{$res} \n";
}else{
//print "false\n";
//print("{$_POST['typ']} == $xml->typ");
}
}
}
//print($res."\n");
}
}
}
?>
How do I compose an if statement to be able to refer to each of the values of the xml file ?
How can I filter this simple xml?

Answer 1

I found a solution to my problem - and these are weights for the searched values - thanks to this I can precisely filter the list from the xml file
$resx=0;
if($_POST['typ'] == $xml->typ){
$resx=$resx+100;
}else{
$resx=$resx-100;
}
if($_POST['min_szerokosc'] <= $xml->max_szerokosc && $_POST['min_wysokosc'] <= $xml->max_wysokosc && $_POST['min_glebokosc'] <= $xml->max_glebokosc ){
$resx=$resx+600;
}else{
$resx=$resx-600;
}
if($_POST['max_szerokosc'] <= $xml->max_szerokosc && $_POST['max_wysokosc'] <= $xml->max_wysokosc && $_POST['max_glebokosc'] <= $xml->max_glebokosc ){
$resx=$resx+5000;
}else{
$resx=$resx-5000;
}
if($_POST['myjnia_automat'] == $xml->myjnia_automat || $_POST['myjnia_reczna'] == $xml->myjnia_reczna || $_POST['wanna'] == $xml->wanna){
$resx=$resx+40000;
}else{
$resx=$resx-40000;
}
if($_POST['kabina_automat'] == $xml->kabina_automat || $_POST['kabina_jedno_stanowiskowa'] == $xml->kabina_jedno_stanowiskowa || $_POST['kabina_dwu_stanowiskowa'] == $xml->kabina_dwu_stanowiskowa){
$resx=$resx+30000;
}else{
$resx=$resx-30000;
}
if($_POST['transport_gorny'] == $xml->transport_gorny || $_POST['transport_dolny'] == $xml->transport_dolny){
$resx=$resx+200;
}else{
$resx=$resx-200;
}
//print $resx."+";
if($resx >= 75900 || $_POST['czysc']==1){
//some code;
}