PHP error on blog post page – Notice: Undefined variable: fetch_url

Sexybookmarks is using a variable before the variable is set. Without looking, I’d guess the plugin is doing something like this (at least this is how how I generated hundreds of these before I knew better):

if ($fetch_url) {
    // do stuff
}

// or maybe this

$anarray[] = $fetch_url;

These work. The parser will read the unset variables as empty or false and basically get things right, but it is technically wrong. To avoid them you’d need to use isset or !empty like so:

if (!empty($fetch_url)) {
    // do stuff
}

if (isset($fetch_url)) {
    $anarray[] = $fetch_url;
}

‘Notices’ are non-fatal. They don’t break the script but do point to ‘loose’ coding practices. If you are seeing that on a production server, you should really turn off error reporting though.

Thanks for your response.

The site is currently just on the dev server, and I had error reporting showing all.

As it’s part of the un-modified plugin, I think i’ll just ignore it.

Thanks again,
Dave

Probocop, thanks for the heads up. The upcoming release of SB should rid of most of these warnings.