麻烦与Facebook多层次的JSON PHP foreach循环 [英] Trouble with Facebook multi-level json php foreach loop
本文介绍了麻烦与Facebook多层次的JSON PHP foreach循环的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我知道像这样的问题已经被问过很多次。但请相信我，我已搜查没有得到特殊的回答我的问题。
我试图从一个JSON响应我从Facebook图形API得到的信息，使用PHP。
回应是这样的：
{
相册：{
数据：
{
ID：1111111111111111111111111111
CREATED_TIME：2015-02-27T22：46：22 + 0000，
相片： {
数据：
{
名：婚礼，
源：https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CREATED_TIME：2015-02-27T22：46：28 + 0000，
ID：1111111111111111111111111111
}，
{
源：https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CREATED_TIME：2015-02-27T22：47：03 + 0000，
ID：1111111111111111111111111111
}，
{
资源： \"https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\",
CREATED_TIME：2015-02-27T22：47：10 + 0000，
ID：1111111111111111111111111111
}，
{
名：壳，
资源： \"https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\",
CREATED_TIME：2015-02-28T00：09：45 + 0000，
ID：1111111111111111111111111111
}
]
分页：{
游标：{
之前：MTU5NjUyNDQzMzkxMDkwNQ ==
内经：MTU5NjU0MDcwMzkwOTI3OA ==
}
}
}
}，
{
ID：1111111111111111666111111111
CREATED_TIME：2015-02-27T22：35：44 + 0000，
相片： {
数据：
{
源：https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CREATED_TIME：2015-02-27T22：35：46 + 0000，
ID：111111111111111111111111333
}
]
分页：{
游标：{
之前：MTU5NjUyMjU1NzI0NDQyNg ==
内经：MTU5NjUyMjU1NzI0NDQyNg ==
}
}
}
}
]
分页：{
游标：{
内经：MTU5NjUyMjU1MDU3Nzc2MA ==
之前：MTU5NjUyNDQwNzI0NDI0MQ ==
}
}
}，
ID：76577536756346436343434
}
问题是;响应有像2级别的数据阵列。
我需要的源和名，从照片，数据数组。
这是我干了什么：
＆LT; PHP
$ fbpageid =我有我这里用有效的页面ID;
$ fbaccess_token =我有一个有效的访问令牌，我这里使用的;
$ fburl = \"https://graph.facebook.com/v2.2/{$fbpageid}?fields=albums{photos{name,source}}&access_token={$fbaccess_token}\";
/ ***我进入这个网址高于走进我的浏览器使用正确的变量，它工作得很好.. ..GAVE ME喜欢的人的响应高于** /$ fbfetch =的file_get_contents（$ fburl）; / ***从我的preVIOUS Instagram的项目，我知道这工作正常** /$ =专辑json_de code（$ fbfetch）; / ***我知道这工作正常TOO ** / ＆LT; PHP
的foreach（$ albums-＆GT; albums-＆GT;数据$照片）{
回声$光电＆GT; ID。 '＆LT; BR＆GT;'; / **这个工程** /
}
？＆GT;的foreach（$ albums-＆GT; albums-＆GT;数据 - ＆GT; photos-＆GT;数据$照片）？{＆GT;
＆LT; A HREF =＆LT; PHP的echo $照片['源'];？＆gt;中标题=＆LT; PHP的echo $照片['名'];？＆GT;＆GT;
＆LT; IMG SRC =＆LT; PHP的echo $照片['源'];？＆gt;中ALT =＆LT; PHP的echo $照片['名'];？＆gt;中/＆GT; ＆所述; / A＆GT;
＆LT; PHP} / **这并不** /＆GT？;
我能够得到这样从专辑，ID（我不需要通过的方式）在第1层的数据阵列信息，但是这远，我去。
我真正需要的是照片阵中的信息。
任何帮助以解决这一问题将是非常美联社preciated。
解决方案
＆LT; PHP
$ fbfetch ='{
相册：{
数据：
{
ID：1111111111111111111111111111
CREATED_TIME：2015-02-27T22：46：22 + 0000，
相片： {
数据：
{
名：婚礼，
源：https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CREATED_TIME：2015-02-27T22：46：28 + 0000，
ID：1111111111111111111111111111
}，
{
源：https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CREATED_TIME：2015-02-27T22：47：03 + 0000，
ID：1111111111111111111111111111
}，
{
资源： \"https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\",
CREATED_TIME：2015-02-27T22：47：10 + 0000，
ID：1111111111111111111111111111
}，
{
名：壳，
资源： \"https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\",
CREATED_TIME：2015-02-28T00：09：45 + 0000，
ID：1111111111111111111111111111
}
]
分页：{
游标：{
之前：MTU5NjUyNDQzMzkxMDkwNQ ==
内经：MTU5NjU0MDcwMzkwOTI3OA ==
}
}
}
}，
{
ID：1111111111111111666111111111
CREATED_TIME：2015-02-27T22：35：44 + 0000，
相片： {
数据：
{
源：https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CREATED_TIME：2015-02-27T22：35：46 + 0000，
ID：111111111111111111111111333
}
]
分页：{
游标：{
之前：MTU5NjUyMjU1NzI0NDQyNg ==
内经：MTU5NjUyMjU1NzI0NDQyNg ==
}
}
}
}
]
分页：{
游标：{
内经：MTU5NjUyMjU1MDU3Nzc2MA ==
之前：MTU5NjUyNDQwNzI0NDI0MQ ==
}
}
}，
ID：76577536756346436343434
}; $ =专辑json_de code（$ fbfetch）;//的print_r（$专辑）; //有关疑难解答
的foreach（$ albums-＆GT; albums-＆GT;数据$照片）{//我改变$照片这里$照片
回声$ photos-＆GT; ID。 '＆LT; BR＆GT;'; / **这个工程** /
//的print_r（$照片）; //有关疑难解答
的foreach（$ photos-＆GT; photos-＆GT;数据$照片）？{＆GT;
＆LT; PHP //的print_r（$照片）; //有关疑难解答＆GT？;
＆LT; A HREF =＆LT; PHP的echo $光电＆GT;源;＆gt;中标题=＆LT; PHP的echo $光电＆GT;名;＆gt;中＆GT;
＆LT; IMG SRC =＆LT; PHP的echo $光电＆GT;源;＆gt;中ALT =＆LT; PHP的echo $光电＆GT;名;＆gt;中/＆GT; ＆所述; / A＆GT; ＆LT; PHP}
}
？＆GT;
对于我而言，我用字符串格式的例子JSON。你会注意到一些的print_r的，我用。他们现在被注释掉。我只是用它们来帮助查找问题。问题是在最后一位。
＆LT; A HREF =＆LT; PHP的echo $光电＆GT;源;＆gt;中标题=＆LT; PHP的echo $光电＆GT;名;＆gt;中＆GT;
＆LT; IMG SRC =＆LT; PHP的echo $光电＆GT;源;＆gt;中ALT =＆LT; PHP的echo $光电＆GT;名;＆gt;中/＆GT;
＆所述; / A＆GT;
这些写出来作为阵列 $照片['源'] 而不是对象 $光电＆GT;源
（是的，我还使用了嵌入式的foreach）
我希望这是有帮助！它完美地跑了我。用下面的输出的一个较长版本
1111111111111111111111111111＆LT; BR＆GT; ＆LT; A HREF =https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx称号=婚纱＆GT;
＆LT; IMG SRC =https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxALT =婚礼/＆GT; ＆所述; / A＆GT; ＆LT; A HREF =https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx称号=＆GT;
＆所述; IMG SRC =https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxALT =/＆GT; ＆所述; / A＆GT;
I know questions like this one have been asked many times before. But believe me, I have SEARCHED without getting an answer peculiar to my problem.
I'm trying to get information from a json response I got from facebook graph api, using php.
the response looks like this:
{
"albums": {
"data": [
{
"id": "1111111111111111111111111111",
"created_time": "2015-02-27T22:46:22+0000",
"photos": {
"data": [
{
"name": "wedding",
"source": "https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-27T22:46:28+0000",
"id": "1111111111111111111111111111"
},
{
"source": "https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-27T22:47:03+0000",
"id": "1111111111111111111111111111"
},
{
"source": "https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-27T22:47:10+0000",
"id": "1111111111111111111111111111"
},
{
"name": "Shells",
"source": "https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-28T00:09:45+0000",
"id": "1111111111111111111111111111"
}
],
"paging": {
"cursors": {
"before": "MTU5NjUyNDQzMzkxMDkwNQ==",
"after": "MTU5NjU0MDcwMzkwOTI3OA=="
}
}
}
},
{
"id": "1111111111111111666111111111",
"created_time": "2015-02-27T22:35:44+0000",
"photos": {
"data": [
{
"source": "https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-27T22:35:46+0000",
"id": "111111111111111111111111333"
}
],
"paging": {
"cursors": {
"before": "MTU5NjUyMjU1NzI0NDQyNg==",
"after": "MTU5NjUyMjU1NzI0NDQyNg=="
}
}
}
}
],
"paging": {
"cursors": {
"after": "MTU5NjUyMjU1MDU3Nzc2MA==",
"before": "MTU5NjUyNDQwNzI0NDI0MQ=="
}
}
},
"id": "76577536756346436343434"
}
The problem is; the response has like 2 levels data arrays. I need to get "source" and "name" from the "photos" "data" array.
This is what I've done:
<?php
$fbpageid = "I HAVE A VALID PAGE ID I USED HERE";
$fbaccess_token = "I HAVE A VALID ACCESS TOKEN I USED HERE";
$fburl = "https://graph.facebook.com/v2.2/{$fbpageid}?fields=albums{photos{name,source}}&access_token={$fbaccess_token}";
/***I ENTERED THIS URL ABOVE INTO MY BROWSER WITH ALL THE VARIABLES CORRECT, IT WORKED FINE.. ..GAVE ME A RESPONSE LIKE THE ONE ABOVE**/
$fbfetch = file_get_contents($fburl); /***FROM MY PREVIOUS INSTAGRAM PROJECTS, I KNOW THIS WORKS FINE**/
$albums = json_decode($fbfetch); /***I KNOW THIS WORKS FINE TOO**/
<?php
foreach ($albums->albums->data as $photo) {
echo $photo->id . '<br>'; /**THIS WORKS**/
}
?>
foreach ($albums->albums->data->photos->data as $photo) { ?>
<a href="<?php echo $photo['source']; ?>" title="<?php echo $photo['name']; ?>">
<img src="<?php echo $photo['source']; ?>" alt="<?php echo $photo['name']; ?>" />
</a>
<?php } /**THIS DOESNT**/ ?>
I'm able to get information like "id" (which I don't need, by the way) from the "albums" "data" array on the 1st level, but that's as far as I go. What I really need are the information in the "photos" array.
Any help with solving this problem would be really appreciated.
解决方案
<?php
$fbfetch='{
"albums": {
"data": [
{
"id": "1111111111111111111111111111",
"created_time": "2015-02-27T22:46:22+0000",
"photos": {
"data": [
{
"name": "wedding",
"source": "https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-27T22:46:28+0000",
"id": "1111111111111111111111111111"
},
{
"source": "https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-27T22:47:03+0000",
"id": "1111111111111111111111111111"
},
{
"source": "https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-27T22:47:10+0000",
"id": "1111111111111111111111111111"
},
{
"name": "Shells",
"source": "https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-28T00:09:45+0000",
"id": "1111111111111111111111111111"
}
],
"paging": {
"cursors": {
"before": "MTU5NjUyNDQzMzkxMDkwNQ==",
"after": "MTU5NjU0MDcwMzkwOTI3OA=="
}
}
}
},
{
"id": "1111111111111111666111111111",
"created_time": "2015-02-27T22:35:44+0000",
"photos": {
"data": [
{
"source": "https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"created_time": "2015-02-27T22:35:46+0000",
"id": "111111111111111111111111333"
}
],
"paging": {
"cursors": {
"before": "MTU5NjUyMjU1NzI0NDQyNg==",
"after": "MTU5NjUyMjU1NzI0NDQyNg=="
}
}
}
}
],
"paging": {
"cursors": {
"after": "MTU5NjUyMjU1MDU3Nzc2MA==",
"before": "MTU5NjUyNDQwNzI0NDI0MQ=="
}
}
},
"id": "76577536756346436343434"
}';
$albums = json_decode($fbfetch);
//print_r($albums); //For troubleshooting
foreach ($albums->albums->data as $photos) { // I changed $photo to $photos here
echo $photos->id . '<br>'; /**THIS WORKS**/
//print_r($photos); //For troubleshooting
foreach ($photos->photos->data as $photo) { ?>
<?php //print_r($photo); //For troubleshooting ?>
<a href="<?php echo $photo->source; ?>" title="<?php echo $photo->name; ?>">
<img src="<?php echo $photo->source; ?>" alt="<?php echo $photo->name; ?>" />
</a>
<?php }
}
?>
For my purposes, I used your example JSON in string format. You'll notice a few print_r's that I used. They are now commented out. I just used them to help find the issue. The problem was in the final bit.
<a href="<?php echo $photo->source; ?>" title="<?php echo $photo->name; ?>">
<img src="<?php echo $photo->source; ?>" alt="<?php echo $photo->name; ?>" />
</a>
These were written out as arrays $photo['source'] instead of objects $photo->source
(And, yes, I still used the embeded foreach)
I hope that's helpful! It ran perfectly for me. With a longer version of the following output:
1111111111111111111111111111<br> <a href="https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" title="wedding">
<img src="https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" alt="wedding" />
</a>
<a href="https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" title="">
<img src="https://scontent.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" alt="" />
</a>
这篇关于麻烦与Facebook多层次的JSON PHP foreach循环的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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