Array values into string

Question

I've been searching and searching and can't find anything that works, but this is what I want to do.

This code:

try{
$timeout = 2;
$scraper = new udptscraper($timeout);
$ret = $scraper->scrape('udp://tracker.openbittorrent.com:80',array('0D7EA7F06E07F56780D733F18F46DDBB826DCB65'));
print_r($ret);
}catch(ScraperException $e){
echo('Error: ' . $e->getMessage() . "<br />\n");
echo('Connection error: ' . ($e->isConnectionError() ? 'yes' : 'no') . "<br />\n");
}

Outputs this:

Array ( [0D7EA7F06E07F56780D733F18F46DDBB826DCB65] => Array ( [seeders] => 148 [completed] => 10 [leechers] => 20 [infohash] => 0D7EA7F06E07F56780D733F18F46DDBB826DCB65 ) )

And I want that seeder count into a string such as $seeds. How would I go about doing this?

Sounds like you want extract.

cmbuckley
– cmbuckley

2012-12-30 22:34:06 +00:00
Commented Dec 30, 2012 at 22:34 — cmbuckley
– cmbuckley, Commented Dec 30, 2012 at 22:34

Žan Kusterle · Accepted Answer · 2012-12-30 22:35:04Z

2

Something like this?

$seeds = $ret['0D7EA7F06E07F56780D733F18F46DDBB826DCB65']['seeders'];

answered Dec 30, 2012 at 22:35

Žan Kusterle

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Comments

user1182183 · Accepted Answer · 2012-12-30 22:35:24Z

you can user strval() to convert a number to a string.

$string = strval($number);

or you can cast it into a string:

$string = (string)$number;

in your context that would be:

$string = strval($ret['0D7EA7F06E07F56780D733F18F46DDBB826DCB65']['seeders']);

However that odd string is also the first index of the array so you could also do it like this:

$string = strval($ret[0]['seeders']);

or if you want ot use only indexes ('seeders' is also the first index of the second array):

$string = strval($ret[0][0]);

if you just want the number then it's easy too:

$num = $ret[0][0];

Boaz · Accepted Answer · 2013-01-06 02:42:58Z

It's not clear if you're looking to assign the array value(s?) as a separate variable(s?) or just to cast it into a string. Here's a nice way to accomplish all the above options, by assigning each array key as a separate variable with the matching array value:

$ret_vars = array_pop($ret);
foreach ($ret_vars as $variable_name=>$variable_value) :
    ${$variable_name} = (string)$variable_value;
endforeach;

In your original example, this would end up populating $seeders, $completed, $leechers and $infohash with their matching string values. Of course, make sure these variable names are not used/needed elsewhere in the code. If that's the case, simply add some sort of unique prefix to the ${} construct, like ${'ret_'.$variable_name}

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