Updating this question...I'm working on a small CMS. The data is held in XML. I'm trying to access the right image field to update the filename and delete the current image.

Script gets variables based on where it was called from. In this case $page = "homes", $elem = "home" and $field = 0. Below is called on an image upload.

if (!empty($_FILES)) {
    $field = $_POST['field'];
    $tempFile = $_FILES['upload']['tmp_name'];
    $targetFile = "img/sections/".$_POST['page']."/";
    $targetFile .= basename($_FILES['upload']['name']);
    if (move_uploaded_file($tempFile,$targetFile)) {
        $file = "spice.xml";
        $load = simplexml_load_file($file);
        $old_img = $load->sections->$page->$elem[$field]['img'];
        $load->sections->$page->$elem[$field]['img'] = $targetFile;
        file_put_contents($file, $xml->saveXML());
        unlink($old_img);
    }
}

This is the structure of the XML file:

<spice>
    <sections>
        <homes>
            <home img="img/sections/home/img1.jpg"/>
            <home img="img/sections/home/img2.jpg"/>
            <home img="img/sections/home/img3.jpg"/>
        </homes>    
    </sections>
</spice>

My problem is that $old_img is giving me a "Cannot use string offset as an array" error. If I replace just the $elem and $field variables with values it all works fine.

Comments

What you are talking about?

Written by KingCrunch

without any description of the context of this problem, there's little we can do to help. you also need to work on that accept rate if you want better participation.

Written by stillstanding

I'll read up on the accept rate. First time I've seen it.

Written by Thomas McCabe

please define "fails". What actually do you get?

Written by zerkms

Accepted Answer

Alternative code using XPath:

$load = simplexml_load_file($file);
$path=$load->xpath('//sections/'.$page.'/'.$elem);
$path[$field]['img']=$targetFile;
Written by stillstanding
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