I'm trying to get the "trackViewUrl" string from this piece of json:

 

{
"resultCount":1,
"results": [
{"wrapperType":"track", "kind":"song", "artistId":471744, "collectionId":66092910, "trackId":66092553, "artistName":"Coldplay", "collectionName":"X & Y", "trackName":"Talk", "collectionCensoredName":"X & Y", "trackCensoredName":"Talk", "artistViewUrl":"http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewArtist?id=471744&uo=4", "collectionViewUrl":"http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?i=66092553&id=66092910&s=143441&uo=4", "trackViewUrl":"http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?i=66092553&id=66092910&s=143441&uo=4", "previewUrl":"http://a1039.phobos.apple.com/us/r1000/008/Music/31/a5/52/mzi.nlxlmqcg.aac.p.m4p", "artworkUrl60":"http://a1.phobos.apple.com/us/r1000/017/Features/40/f0/b6/dj.vjdvmixl.60x60-50.jpg", "artworkUrl100":"http://a1.phobos.apple.com/us/r1000/017/Features/40/f0/b6/dj.vjdvmixl.100x100-75.jpg", "collectionPrice":9.99000, "trackPrice":1.29000, "collectionExplicitness":"notExplicit", "trackExplicitness":"notExplicit", "discCount":1, "discNumber":1, "trackCount":13, "trackNumber":5, "trackTimeMillis":311356, "country":"USA", "currency":"USD", "primaryGenreName":"Alternative"}]
}

 

Using this PHP Code:

$request_url = 'http://ax.phobos.apple.com.edgesuite.net/WebObjects/MZStoreServices.woa/wa/wsSearch?term=talk+coldplay&media=music&limit=1';

$json = file_get_contents($request_url);

$decode = json_decode($json, true);

var_dump($decode);

 

I have converted it into this PHP Array:

array(2) { ["resultCount"]=> int(1) ["results"]=> array(1) { [0]=> array(28) { ["wrapperType"]=> string(5) "track" ["kind"]=> string(4) "song" ["artistId"]=> int(471744) ["collectionId"]=> int(66092910) ["trackId"]=> int(66092553) ["artistName"]=> string(  "Coldplay" ["collectionName"]=> string(5) "X & Y" ["trackName"]=> string(4) "Talk" ["collectionCensoredName"]=> string(5) "X & Y" ["trackCensoredName"]=> string(4) "Talk" ["artistViewUrl"]=> string(75) "http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewArtist?id=471744&uo=4" ["collectionViewUrl"]=> string(96) "http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?i=66092553&id=66092910&s=143441&uo=4" ["trackViewUrl"]=> string(96) "http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?i=66092553&id=66092910&s=143441&uo=4" ["previewUrl"]=> string(80) "http://a1039.phobos.apple.com/us/r1000/008/Music/31/a5/52/mzi.nlxlmqcg.aac.p.m4p" ["artworkUrl60"]=> string(82) "http://a1.phobos.apple.com/us/r1000/017/Features/40/f0/b6/dj.vjdvmixl.60x60-50.jpg" ["artworkUrl100"]=> string(84) "http://a1.phobos.apple.com/us/r1000/017/Features/40/f0/b6/dj.vjdvmixl.100x100-75.jpg" ["collectionPrice"]=> float(9.99) ["trackPrice"]=> float(1.29) ["collectionExplicitness"]=> string(11) "notExplicit" ["trackExplicitness"]=> string(11) "notExplicit" ["discCount"]=> int(1) ["discNumber"]=> int(1) ["trackCount"]=> int(13) ["trackNumber"]=> int(5) ["trackTimeMillis"]=> int(311356) ["country"]=> string(3) "USA" ["currency"]=> string(3) "USD" ["primaryGenreName"]=> string(11) "Alternative" } } } 

 

I can't work out what I need to get the value of the trackViewUrl string though I've tried:

echo $decode["trackViewUrl"];

But it says it is undefined ? Can any see where I'm going wrong here..

There are actually 3 nested arrays here, the $decode array(2), the 'results' array(1) and another array(28) that holds the values you want.

You'll access them like so:

echo $decode['results'][0]['trackViewUrl'];

 

You'll find it easier to read the output of var_dump by placing it inside <pre> tags

echo '<pre>';
var_dump($decode);
echo '</pre>';

Perfect, Thanks

Little bit more help needed

 

I'm trying to implement an If Statement so that if the 'resultCount' String equals 0 (i.e No Results were returned) then it doesn't try to find the trackViewUrl string so it doesn't produce an error.

 

$json = file_get_contents("http://ax.phobos.apple.com.edgesuite.net/WebObjects/MZStoreServices.woa/wa/wsSearch?term=".$cleanst."&limit=1");

               $decode = json_decode($json, true);
	$resultcount =  $decode['resultCount'];

	if($resultcount = '1')
	{$trackView = $decode['results'][0]['trackViewUrl'];

	echo "<a href='".$trackView."'>Download</a>";}

	else if  ($resultcount = "0")
	{echo "Download Not Avalible";}	

 

This doesn't seem to work but I've check the $resultcount variable and it is outputting the correct amount of results for that query..

At the moment you're using the assignment operator '=' instead of comparing the values '=='.

You're code should look like this:

if($resultcount == 1)
{
    $trackView = $decode['results'][0]['trackViewUrl'];
    echo "<a href='".$trackView."'>Download</a>";
}
else if  ($resultcount == 0)
{
    echo "Download Not Available";
} 

Ah so close

 

Again thanks