Why is it only echoing one id?

[devWhiz]

$lastfm = file_get_contents('http://www.last.fm/group/Rishloo/members');
$users = explode('" id="r4_', $lastfm);
$users = explode('">', $users[1]);
var_dump($users[0]);

 

that is only echoing one ID

 

http://www.last.fm/group/Rishloo/members

 

1 id for each member it should be echoing.. any idea why it isnt?

 

$lastfm = file_get_contents('http://www.last.fm/group/Rishloo/members');
$grab_id=explode('" id="r4_', $lastfm);
for($b=1; $b<count($grab_id); $b++){
$getid=explode('">', $grab_id[$b]);
echo count($getid[0]);
}

 

that echos all 1's.. any help is appreciated.. thanks

 

 

thanks

[cssfreakie]

can you do a var_dump on $grab_id? and tell the number of array items?

 

<?php
var_dump($grab_id);

?>

 

If that  is only 1 than that is the problem i guess.

[devWhiz]

it just echos the contents of http://www.last.fm/group/Rishloo/members it looks like...

 

[wildteen88]

You may be better of using the Document Object Model. Or better yet regex rather than explode. Regex is a lot more powerful.

[devWhiz]

do you have any code examples I can look at?

[fugix]

he linked the text to where you should see examples

[Psycho]

I assumed you want more than just the IDs. The following code will provide the id, image url, name(s), bio for each user, plus their listening or last track info.

$lastfm = file_get_contents('http://www.last.fm/group/Rishloo/members');

$pattern = array();
$patterns[] = "id=\"r4_([^\"]*)\"";
$patterns[] = "class=\"userImage\"><img.*?src=\"([^\"]*)\"";
$patterns[] = "<\/span> ([^<]*)<";
$patterns[] = "<strong class=\"fn\">([^<]*)<";
$patterns[] = ",             ([^\n]*)";
$patterns[] = "(Listening|Last track):";
$patterns[] = "<a href=\"\/music\/[^\"]*\">([^<]*)<";
$patterns[] = "<a href=\"\/music\/[^\"]*\">([^<]*)<";

$pattern = "#" . implode('.*?', $patterns) . "#sim";
preg_match_all($pattern, $lastfm, $matches, PREG_SET_ORDER);

//Remove first element from each record, it contains HTML code that will mess up the output
//This is not needed and only included so I can print_r the results to the page
foreach($matches as $idx => $value)
{
    unset($matches[$idx][0]);
}

echo "<pre>\n";
print_r($matches)

 

This is probably not the most efficient way to get that data, but it works.

 

Here is some of the output from the above:

Array
(
    [0] => Array
        (
            [1] => 20770702
            [2] => http://userserve-ak.last.fm/serve/64s/60856343.jpg
            [3] => Alice_in_pains
            [4] => nermin
            [5] => 20, Female, Azerbaijan
            [6] => Last track
            [7] => Tool
            [8] => Useful Idiot
        )

    [1] => Array
        (
            [1] => 35133964
            [2] => http://userserve-ak.last.fm/serve/64s/55291785.jpg
            [3] => agostinoo
            [4] => Agostino
            [5] => 19, Male, United Kingdom
            [6] => Last track
            [7] => Cat Power
            [8] => Fool
        )

    [2] => Array
        (
            [1] => 38461866
            [2] => http://userserve-ak.last.fm/serve/64s/61233861.jpg
            [3] => maverikgameface
            [4] => Reece Gerard
            [5] => 20, United States
            [6] => Last track
            [7] => A Perfect Circle
            [8] => Weak And Powerless
        )

[Psycho]

OK, after some further verification it looks like the above expressions were preventing some records to be properly identified. I don't have the time to evaluate all the records to determine the problem. Just comment out the lines identified below and you should get the ID, image URL and name of each user. I can't guarantee it will always work based upon how that website modifies their data

$pattern = array();
$patterns[] = "id=\"r4_([^\"]*)\"";
$patterns[] = "class=\"userImage\"><img.*?src=\"([^\"]*)\"";
$patterns[] = "<\/span> ([^<]*)<";
//$patterns[] = "<strong class=\"fn\">([^<]*)<";
//$patterns[] = ",             ([^\n]*)";
//$patterns[] = "(Listening|Last track):";
//$patterns[] = "<a href=\"\/music\/[^\"]*\">([^<]*)<";
//$patterns[] = "<a href=\"\/music\/[^\"]*\">([^<]*)<";