XPATH method for retuning multiple dynamic results from a XML file using PHP -

i have form user types or selects value form follows

<form id="search_photos" action="photo_result.php" method="get"> <select name="photographer_id" id="photographer_id"   style="height:23px; border:1px solid silver;">     <option selected="selected" value="x">any photographer_id</option>     <option value="john">john</option>     <option value="fred">fred</option>     <option value="joseph">joseph</option> </select> <select name="photographer_id" id="photographer_id"   style="height:23px; border:1px solid silver;">     <option selected="selected" value="x">any photographer_id</option>     <option value="1">1</option>     <option value="2">2</option>     <option value="3">3</option> </select> <select name="images" id="images"   style="height:23px; border:1px solid silver;">     <option selected="selected" value="x">all images</option>     <option value="0">none</option>     <option value="a">image a</option>     <option value="b">image b </option>     <option value="c">image c </option> </select>     <select name="images_id" id="images_id"   style="height:23px; border:1px solid silver;">     <option selected="selected" value="x">all images</option>     <option value="0">none</option>     <option value="1">1</option>     <option value="2">2</option>     <option value="3">3</option> </select> <input name="submit" value="search &gt;" id="submit" class="adv1_filter_button" type="submit"> 

then search_photo.php script catches result of form , filters values entered user follows

$xml = simplexml_load_file("photo.xml");  ($i = 0; $i < count($xml); $i++) {        if (isset($_get["locationname"])) {         $photographer_id = $_get["locationname"];     }      $result = $xml->xpath('/root/area[photographer_id="' . $photographer_id . '"]  '); }  if(isset($_get["photographer"])) {     $photographer = $_get["photographer"]; }   $result = $xml->xpath('/root/area[photographer_id="' . $photographer_id . '"]  ');  if(isset($_get["images"])) {     $image = $_get["images"]; }  echo $photographer_id; echo $photographer; echo $image; var_dump ($result); 

the $result first xpath pass correct if set ‘photographer_id’ if try $result = $xml->xpath('/root/area[photographer_id="' . $photographer_id . '"] | /root/area[photographer="' . $photographer . '"]'); , select 1 , fred result of array of 4 when should empty array can advise how correct error. sorry michi here xml file

 <?xml version="1.0" encoding="utf-8"?>   <root>    <area>     <photographer_id>1</photographer_id>     <photographer>john</photographer>     <image>a</image>     <image_id>1</image_id>    </area>    <area>     <photographer_id>1</photographer_id>     <photographer>john</photographer>     <image>b</image>     <image_id>2</image_id>    </area>    <area>     <photographer_id>1</photographer_id>     <photographer>john</photographer>     <image>c</image>     <image_id>3</image_id>    </area>    <area>     <photographer_id>2</photographer_id>     <photographer>fred</photographer>     <image>a</image>     <image_id>4</image_id>    </area>    <area>     <photographer_id>3</photographer_id>     <photographer>joseph</photographer>     <image>a</image>     <image_id>5</image_id>    </area>   </root> 

does help, final xml file larger though.

hi had simillar problem long in script, have taken idea there , came hope helps

<?php 

$xml = simplexml_load_file("photo.xml");

for ($i = 0; $i < count($xml); $i++){

if(isset($_get["locationname"])) {     $photographer_id = $_get["locationname"]; }  $result = $xml->xpath('/root/area[photographer_id="' . $photographer_id . '"]  '); }   if(isset($_get["photographer"])) {     $photographer = $_get["photographer"]; }   if(isset($_get["images"])) {     $image = $_get["images"];      //$result = $xml->xpath('/root/area[photographer_id="' . $photographer_id . '"] , /root/area[photographer="' . $photographer . '"]'); 

}

//echo $photographer_id; //echo $photographer; //echo $image;  $filteredresult = array();  foreach($result $obj){     if(in_array($photographer, (array)$obj) == 1 || $photographer == 'x'){          if(in_array($image, (array)$obj) || $image == 'x'){             array_push($filteredresult, $obj);         }     } }  foreach($filteredresult &$obj){     //how access values in object     echo $obj->{'photographer'};     echo $obj->{'image'}; } echo $obj->{'image'};      ?> 

the last echo should give pointers