tony_p
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Posts posted by tony_p
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Sorry I forgot to add the XML content
<?xml version="1.0" encoding="UTF-8"?>
<root>
<area>
<photographer_id>1</photographer_id>
<photographer>John</photographer>
<image>a</image>
</area>
<area>
<photographer_id>1</photographer_id>
<photographer>John</photographer>
<image>b</image>
</area>
<area>
<photographer_id>1</photographer_id>
<photographer>John</photographer>
<image>c</image>
</area>
<area>
<photographer_id>2</photographer_id>
<photographer>Fred</photographer>
<image>a</image>
</area>
</root> -
XPATH method for retuning multiple dynamic results from a XML file using PHP
I have a form that the user types or selects a value the form is as follows
<form id="search_photos" action="photo_result.php" method="get">
<input value="" name="photographer_id" id="photographer_id" style=" border:1px solid Silver;" type="text">
<select name="Photographer" id="Photographer" style="height:23px; border:1px solid Silver;">
<option selected="selected" value="x">Any Photographer</option>
<option value="John">John</option>
<option value="Fred">Fred</option>
<option value="Joseph">Joseph</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>
<input name="Submit" value="Search Now >" id="Submit" class="Adv1_Filter_Button" type="submit">
</form>
Then the search_photo.php script that catches the result of the form and filters the values entered by the user as
follows
<?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"];
}
$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 from the first XPATH pass is correct if all that is set is ‘photographer_id’ if I then try $result=$xml->xpath('/root/area[photographer_id=' . $photographer_id . '] | /root/area[photographer=' . $photographer .']'); and select
1 and fred then I get the result of an array of all four when it should be an empty array I have trie & (and) insted of | (or) but just returns an empty array should I convert the $result to an object or is the a way of saving the $result to an xml file
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I have tried several approaches but I seem to be missing some code as nothing I do changes the result when the user changes the value of the combo box the the number of elements shown per page stays the same or should I say the page does not get updated
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I have this code below that creates a combo dropdown list that the user can use to select how many images ($MAXEMLEMENTSPERPAGE) I have set caption to be 1 the problem is I can't figure out how to get the combo box to change the value of the user selected item to show that the number of images the user wants I am using $xml = simplexml_load_file ("xml/images.xml"); to load the image elements and then $maxpage to paginate the images if I change $cation to 5 then it displays 5 images per page the problem I have is at the moment I haven't found a way of passing the selected value to $caption to refresh the any help would be appriciated
<select name="mydropdownlist"> <?php $caption = 1; $options = array('2' => '2', '3' => '3', '4' => '4'); foreach($options as $value => $caption) { if(isset($_GET['caption'])) { $caption = $_GET['caption']; //if page is specif } echo "<option value=\"$value\" selected=\"$value\">$caption</option>"; } ?> </select> <?php $page = 0; $MAXELEMENTSPERPAGE = $caption; //change this value to display how many elements per page you wish people to see $maxPage = count($xml)/$MAXELEMENTSPERPAGE; if(isset($_GET['page'])) { $page = $_GET['page']; //if page is specif } ?> <?php for($i =$page * $MAXELEMENTSPERPAGE ; $i< ($page * $MAXELEMENTSPERPAGE ) +$MAXELEMENTSPERPAGE ; $i++) { //start the foreach loop $imageProp = $i; if($i >= count($xml)) { break; } ?> Page: <?php if($page > 0){ ?> <a href=<?php echo $_SERVER["PHP_SELF"]."?page=".($page-1); ?>>Previous </a> <?php } for($i = 0; $i< $maxPage; $i++ ){ //here we are making a loop for how many pages we have //we then spawn a hyperlink for each page //$Server["php_self"] returns the current page url //then we append the page number to it ?> <a href=<?php echo $_SERVER["PHP_SELF"]."?page=".$i; ?>><?php echo $i;?></a> <?php } ?> <?php if($page < floor($maxPage)){ ?> <a href=<?php echo $_SERVER["PHP_SELF"]."?page=".($page+1); ?>> Next </a> <?php } ?>page with its new value
GET request on page removing POST information
in PHP Coding Help
Posted
I have a drop down form that the user selects to change the number of items shown per page
the problem is that whenever someone perform a get request on the page the POST data disappears. Does anyone know any way in which we can solve this. We can post to the page fine, the print_r of post shows this when we head to the page: Array '/Search_form/search_results.php?photograpgher_id=1&photographer=x&image=x&Submit=Search&page=1' its only when we do a get request on the page we have a problem as the post data does not follow through with the get request we only get the this array '/Search_form/search_results.php?caption=5' but it should be '/Search_form/search_results.php?photograpgher_id=1&photographer=x&image=x&Submit=Search&page=1?caption=5' as I have type this in manually and works fine any help would be appreciated