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我想從php下的json獲得每首歌的標題。我無法獲得所有的名字。我嘗試了下面的代碼，但它沒有顯示任何內容。我非常感謝任何幫助。提前致謝。無法獲得json_decode字段
代碼：
$json = file_get_contents('http://itunes.apple.com/us/rss/topsongs/limit=5/json');
$data=(json_decode($json, true));
foreach ($data as $item)
{
foreach ($item->entry as $asset)
{
echo $asset->title;
}
}
JSON：
{
"feed": {
"author": {
"name": {
"label": "iTunes Store"
},
"uri": {
"label": "http://www.apple.com/itunes/"
}
},
"entry": [
{
"im:name": {
"label": "Happy (From \"Despicable Me 2\")"
},
"im:image": [
{
"label": "http://a923.phobos.apple.com/us/r30/Music6/v4/7b/9c/58/7b9c58cb-71b8-44f1-5539-864ea5e505e2/886444495165.55x55-70.jpg",
"attributes": {
"height": "55"
}
},
{
"label": "http://a1645.phobos.apple.com/us/r30/Music6/v4/7b/9c/58/7b9c58cb-71b8-44f1-5539-864ea5e505e2/886444495165.60x60-50.jpg",
"attributes": {
"height": "60"
}
},
{
"label": "http://a1228.phobos.apple.com/us/r30/Music6/v4/7b/9c/58/7b9c58cb-71b8-44f1-5539-864ea5e505e2/886444495165.170x170-75.jpg",
"attributes": {
"height": "170"
}
}
],
"im:collection": {
"im:name": {
"label": "G I R L"
},
"link": {
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/g-i-r-l/id823593445?uo=2"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Album",
"label": "Album"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
}
},
"im:price": {
"label": "$1.29",
"attributes": {
"amount": "1.29000",
"currency": "USD"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Track",
"label": "Track"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
},
"rights": {
"label": "℗ 2014 Columbia Records, a Division of Sony Music Entertainment, 2013 Back Lot Music, under exclusive license to Columbia Records, a Division of Sony Music Entertainment"
},
"title": {
"label": "Happy (From \"Despicable Me 2\") - Pharrell Williams"
},
"link": [
{
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/happy-from-despicable-me-2/id823593445?i=823593456&uo=2"
}
},
{
"im:duration": {
"label": "30000"
},
"attributes": {
"title": "Preview",
"rel": "enclosure",
"type": "audio/x-m4a",
"href": "http://a1083.phobos.apple.com/us/r1000/014/Music/v4/4e/44/b7/4e44b7dc-aaa2-c63b-fb38-88e1635b5b29/mzaf_1844128138535731917.plus.aac.p.m4a",
"im:assetType": "preview"
}
}
],
"id": {
"label": "https://itunes.apple.com/us/album/happy-from-despicable-me-2/id823593445?i=823593456&uo=2",
"attributes": {
"im:id": "823593456"
}
},
"im:artist": {
"label": "Pharrell Williams",
"attributes": {
"href": "https://itunes.apple.com/us/artist/pharrell-williams/id14934728?uo=2"
}
},
"category": {
"attributes": {
"im:id": "14",
"term": "Pop",
"scheme": "https://itunes.apple.com/us/genre/music-pop/id14?uo=2",
"label": "Pop"
}
},
"im:releaseDate": {
"label": "2014-03-03T00:00:00-07:00",
"attributes": {
"label": "March 3, 2014"
}
}
},
{
"im:name": {
"label": "All of Me"
},
"im:image": [
{
"label": "http://a1221.phobos.apple.com/us/r30/Features/v4/c6/16/d4/c616d4bc-ae3c-2c3a-9b48-7ffece9e29b3/dj.velovadm.55x55-70.jpg",
"attributes": {
"height": "55"
}
},
{
"label": "http://a1943.phobos.apple.com/us/r30/Features/v4/c6/16/d4/c616d4bc-ae3c-2c3a-9b48-7ffece9e29b3/dj.velovadm.60x60-50.jpg",
"attributes": {
"height": "60"
}
},
{
"label": "http://a982.phobos.apple.com/us/r30/Features/v4/c6/16/d4/c616d4bc-ae3c-2c3a-9b48-7ffece9e29b3/dj.velovadm.170x170-75.jpg",
"attributes": {
"height": "170"
}
}
],
"im:collection": {
"im:name": {
"label": "Love in the Future (Deluxe Edition)"
},
"link": {
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/love-in-future-deluxe-edition/id679297685?uo=2"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Album",
"label": "Album"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
}
},
"im:price": {
"label": "$1.29",
"attributes": {
"amount": "1.29000",
"currency": "USD"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Track",
"label": "Track"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
},
"rights": {
"label": "℗ 2013 Getting Out Our Dreams and Columbia Records, a Division of Sony Music Entertainment"
},
"title": {
"label": "All of Me - John Legend"
},
"link": [
{
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/all-of-me/id679297685?i=679297849&uo=2"
}
},
{
"im:duration": {
"label": "30000"
},
"attributes": {
"title": "Preview",
"rel": "enclosure",
"type": "audio/x-m4a",
"href": "http://a355.phobos.apple.com/us/r1000/041/Music4/v4/90/cf/04/90cf0482-07c0-fca0-549f-c1ea62c4bdef/mzaf_6715619947923767616.plus.aac.p.m4a",
"im:assetType": "preview"
}
}
],
"id": {
"label": "https://itunes.apple.com/us/album/all-of-me/id679297685?i=679297849&uo=2",
"attributes": {
"im:id": "679297849"
}
},
"im:artist": {
"label": "John Legend",
"attributes": {
"href": "https://itunes.apple.com/us/artist/john-legend/id16586443?uo=2"
}
},
"category": {
"attributes": {
"im:id": "15",
"term": "R&B/Soul",
"scheme": "https://itunes.apple.com/us/genre/music-r-b-soul/id15?uo=2",
"label": "R&B/Soul"
}
},
"im:releaseDate": {
"label": "2013-08-30T00:00:00-07:00",
"attributes": {
"label": "August 30, 2013"
}
}
},
{
"im:name": {
"label": "Let It Go"
},
"im:image": [
{
"label": "http://a261.phobos.apple.com/us/r30/Music/v4/26/be/46/26be4693-e743-f45a-4629-35554af16181/UMG_cvrart_00050087301644_01_RGB72_1500x1500_13DMGIM04438.55x55-70.jpg",
"attributes": {
"height": "55"
}
},
{
"label": "http://a983.phobos.apple.com/us/r30/Music/v4/26/be/46/26be4693-e743-f45a-4629-35554af16181/UMG_cvrart_00050087301644_01_RGB72_1500x1500_13DMGIM04438.60x60-50.jpg",
"attributes": {
"height": "60"
}
},
{
"label": "http://a262.phobos.apple.com/us/r30/Music/v4/26/be/46/26be4693-e743-f45a-4629-35554af16181/UMG_cvrart_00050087301644_01_RGB72_1500x1500_13DMGIM04438.170x170-75.jpg",
"attributes": {
"height": "170"
}
}
],
"im:collection": {
"im:name": {
"label": "Frozen (Deluxe Edition) [Original Motion Picture Soundtrack]"
},
"link": {
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/frozen-deluxe-edition-original/id728903889?uo=2"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Album",
"label": "Album"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
}
},
"im:price": {
"label": "$1.29",
"attributes": {
"amount": "1.29000",
"currency": "USD"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Track",
"label": "Track"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
},
"rights": {
"label": "℗ 2013 Walt Disney Records"
},
"title": {
"label": "Let It Go - Idina Menzel"
},
"link": [
{
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/let-it-go/id728903889?i=728904000&uo=2"
}
},
{
"im:duration": {
"label": "30000"
},
"attributes": {
"title": "Preview",
"rel": "enclosure",
"type": "audio/x-m4a",
"href": "http://a878.phobos.apple.com/us/r1000/023/Music/v4/0a/eb/c2/0aebc299-44e3-3465-3cdf-5bab336b547a/mzaf_7970981567593232494.plus.aac.p.m4a",
"im:assetType": "preview"
}
}
],
"id": {
"label": "https://itunes.apple.com/us/album/let-it-go/id728903889?i=728904000&uo=2",
"attributes": {
"im:id": "728904000"
}
},
"im:artist": {
"label": "Idina Menzel",
"attributes": {
"href": "https://itunes.apple.com/us/artist/idina-menzel/id3297504?uo=2"
}
},
"category": {
"attributes": {
"im:id": "16",
"term": "Soundtrack",
"scheme": "https://itunes.apple.com/us/genre/music-soundtrack/id16?uo=2",
"label": "Soundtrack"
}
},
"im:releaseDate": {
"label": "2013-11-25T00:00:00-07:00",
"attributes": {
"label": "November 25, 2013"
}
}
},
{
"im:name": {
"label": "Dark Horse (feat. Juicy J)"
},
"im:image": [
{
"label": "http://a1657.phobos.apple.com/us/r30/Features4/v4/f7/3e/40/f73e4011-5ed3-fc65-9107-2438acd70509/dj.hbxrueel.55x55-70.jpg",
"attributes": {
"height": "55"
}
},
{
"label": "http://a731.phobos.apple.com/us/r30/Features4/v4/f7/3e/40/f73e4011-5ed3-fc65-9107-2438acd70509/dj.hbxrueel.60x60-50.jpg",
"attributes": {
"height": "60"
}
},
{
"label": "http://a1498.phobos.apple.com/us/r30/Features4/v4/f7/3e/40/f73e4011-5ed3-fc65-9107-2438acd70509/dj.hbxrueel.170x170-75.jpg",
"attributes": {
"height": "170"
}
}
],
"im:collection": {
"im:name": {
"label": "PRISM (Deluxe Version)"
},
"link": {
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/prism-deluxe-version/id690928033?uo=2"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Album",
"label": "Album"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
}
},
"im:price": {
"label": "$1.29",
"attributes": {
"amount": "1.29000",
"currency": "USD"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Track",
"label": "Track"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
},
"rights": {
"label": "℗ 2013 Capitol Records, LLC"
},
"title": {
"label": "Dark Horse (feat. Juicy J) - Katy Perry"
},
"link": [
{
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/dark-horse-feat.-juicy-j/id690928033?i=690928460&uo=2"
}
},
{
"im:duration": {
"label": "30000"
},
"attributes": {
"title": "Preview",
"rel": "enclosure",
"type": "audio/x-m4a",
"href": "http://a1930.phobos.apple.com/us/r1000/022/Music/v4/a4/ac/63/a4ac6341-59e3-bcfe-b7f5-370100eea063/mzaf_4835051646631223146.plus.aac.p.m4a",
"im:assetType": "preview"
}
}
],
"id": {
"label": "https://itunes.apple.com/us/album/dark-horse-feat.-juicy-j/id690928033?i=690928460&uo=2",
"attributes": {
"im:id": "690928460"
}
},
"im:artist": {
"label": "Katy Perry",
"attributes": {
"href": "https://itunes.apple.com/us/artist/katy-perry/id64387566?uo=2"
}
},
"category": {
"attributes": {
"im:id": "14",
"term": "Pop",
"scheme": "https://itunes.apple.com/us/genre/music-pop/id14?uo=2",
"label": "Pop"
}
},
"im:releaseDate": {
"label": "2013-10-22T00:00:00-07:00",
"attributes": {
"label": "October 22, 2013"
}
}
},
{
"im:name": {
"label": "The Man"
},
"im:image": [
{
"label": "http://a1169.phobos.apple.com/us/r30/Music4/v4/67/f0/bb/67f0bbfb-9b0f-ee34-3646-b1bfbe704d4f/UMG_cvrart_00602537732579_01_RGB72_1500x1500_13UAEIM00026.55x55-70.jpg",
"attributes": {
"height": "55"
}
},
{
"label": "http://a243.phobos.apple.com/us/r30/Music4/v4/67/f0/bb/67f0bbfb-9b0f-ee34-3646-b1bfbe704d4f/UMG_cvrart_00602537732579_01_RGB72_1500x1500_13UAEIM00026.60x60-50.jpg",
"attributes": {
"height": "60"
}
},
{
"label": "http://a1234.phobos.apple.com/us/r30/Music4/v4/67/f0/bb/67f0bbfb-9b0f-ee34-3646-b1bfbe704d4f/UMG_cvrart_00602537732579_01_RGB72_1500x1500_13UAEIM00026.170x170-75.jpg",
"attributes": {
"height": "170"
}
}
],
"im:collection": {
"im:name": {
"label": "Lift Your Spirit"
},
"link": {
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/lift-your-spirit/id798928288?uo=2"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Album",
"label": "Album"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
}
},
"im:price": {
"label": "$1.29",
"attributes": {
"amount": "1.29000",
"currency": "USD"
}
},
"im:contentType": {
"im:contentType": {
"attributes": {
"term": "Track",
"label": "Track"
}
},
"attributes": {
"term": "Music",
"label": "Music"
}
},
"rights": {
"label": "℗ 2014 Aloe Blacc Recording, Inc. under exclusive license to XIX Recordings LLC/Interscope Records"
},
"title": {
"label": "The Man - Aloe Blacc"
},
"link": [
{
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/us/album/the-man/id798928288?i=798928362&uo=2"
}
},
{
"im:duration": {
"label": "30000"
},
"attributes": {
"title": "Preview",
"rel": "enclosure",
"type": "audio/x-m4a",
"href": "http://a85.phobos.apple.com/us/r1000/033/Music6/v4/8a/09/dc/8a09dcf0-4845-81ae-6936-a94972ad94e7/mzaf_5332424013433716082.plus.aac.p.m4a",
"im:assetType": "preview"
}
}
],
"id": {
"label": "https://itunes.apple.com/us/album/the-man/id798928288?i=798928362&uo=2",
"attributes": {
"im:id": "798928362"
}
},
"im:artist": {
"label": "Aloe Blacc",
"attributes": {
"href": "https://itunes.apple.com/us/artist/aloe-blacc/id4750752?uo=2"
}
},
"category": {
"attributes": {
"im:id": "14",
"term": "Pop",
"scheme": "https://itunes.apple.com/us/genre/music-pop/id14?uo=2",
"label": "Pop"
}
},
"im:releaseDate": {
"label": "2014-03-11T00:00:00-07:00",
"attributes": {
"label": "March 11, 2014"
}
}
}
],
"updated": {
"label": "2014-03-26T14:09:41-07:00"
},
"rights": {
"label": "Copyright 2008 Apple Inc."
},
"title": {
"label": "iTunes Store: Top Songs"
},
"icon": {
"label": "http://itunes.apple.com/favicon.ico"
},
"link": [
{
"attributes": {
"rel": "alternate",
"type": "text/html",
"href": "https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewTop?cc=us&id=38&popId=1"
}
},
{
"attributes": {
"rel": "self",
"href": "http://itunes.apple.com/us/rss/topsongs/limit=5/json"
}
}
],
"id": {
"label": "http://itunes.apple.com/us/rss/topsongs/limit=5/json"
}
}
}
變化'json_decode（$ JSON，真）''到json_decode（$ JSON）'。如果第二個參數設置爲true，則解碼輸出將是關聯數組，否則爲對象。 – barell
我試過這也不工作。請嘗試上面的代碼它不會顯示任何東西。 – jason
那你有什麼錯誤嗎？把'error_reporting（E_ALL）; ini_set（'display_errors'，1）;'在PHP腳本的頂部。 – barell