Php 如何调用json对象中的特定数据

好的，我正在对GooglePlacesAPI进行api调用，并返回一个JSON对象。我已经能够使用Ajax处理这个对象，但现在我必须将代码集成到Wordpress实例中，并且在functions.php中进行API调用，因为我想使用get_theme_mod（）；方法

由于我是php新手，我不知道如何从这个对象输出特定的数据

我的对象在下面，我正在尝试访问此对象返回的评论（全部5个）。我知道我可以用Ajax很容易地做到这一点，但我真的很难用PHP中的语法

这是我的PHP API调用

function do_api_call(){
$url = $my_url;
$data = file_get_contents($url);

$rev = json_encode($data);
echo $rev;

}



{"html_attributions":[],"result":{"address_components":[{"long_name":"76","short_name":"76","types":["street_number"]},{"long_name":"North Main Street","short_name":"N Main St","types":["route"]},{"long_name":"Concord","short_name":"Concord","types":["locality","political"]},{"long_name":"Merrimack County","short_name":"Merrimack County","types":["administrative_area_level_2","political"]},{"long_name":"New Hampshire","short_name":"NH","types":["administrative_area_level_1","political"]},{"long_name":"United States","short_name":"US","types":["country","political"]},{"long_name":"03301","short_name":"03301","types":["postal_code"]},{"long_name":"4915","short_name":"4915","types":["postal_code_suffix"]}],"adr_address":"<span class=\"street-address\">76 N Main St</span>, <span class=\"locality\">Concord</span>, <span class=\"region\">NH</span> <span class=\"postal-code\">03301-4915</span>, <span class=\"country-name\">USA</span>","formatted_address":"76 N Main St, Concord, NH 03301, USA","formatted_phone_number":"(603) 856-7181","geometry":{"location":{"lat":43.20638719999999,"lng":-71.53594079999999},"viewport":{"northeast":{"lat":43.20770828029149,"lng":-71.53477561970848},"southwest":{"lat":43.2050103197085,"lng":-71.5374735802915}}},"icon":"https://maps.gstatic.com/mapfiles/place_api/icons/restaurant-71.png","id":"9496ddb6eb5f976d65d829a5bc2a11c16235f24c","international_phone_number":"+1 603-856-7181","name":"The Crazy Goat","opening_hours":{"open_now":true,"periods":[{"close":{"day":0,"time":"1800"},"open":{"day":0,"time":"1200"}},{"close":{"day":2,"time":"2200"},"open":{"day":2,"time":"1200"}},{"close":{"day":3,"time":"2200"},"open":{"day":3,"time":"1200"}},{"close":{"day":4,"time":"2200"},"open":{"day":4,"time":"1200"}},{"close":{"day":5,"time":"2200"},"open":{"day":5,"time":"1200"}},{"close":{"day":6,"time":"2200"},"open":{"day":6,"time":"1200"}}],"weekday_text":["Monday: Closed","Tuesday: 12:00 – 10:00 PM","Wednesday: 12:00 – 10:00 PM","Thursday: 12:00 – 10:00 PM","Friday: 12:00 – 10:00 PM","Saturday: 12:00 – 10:00 PM","Sunday: 12:00 – 6:00 PM"]},"photos":[{"height":1536,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/109874917867182741893/photos\">The Crazy Goat</a>"],"photo_reference":"CmRaAAAAuVKW68MbnuWHZyE8nw6AfMeYfqR8hoZBNmlFFReExDzbgqrkY2NtZro_f8cBWLRzVTajatvGjpv9Mffqv_zeCFuGJIz0jBreCN-0d8YQkc11gzjwZT_-TVS-dwvvx0efEhD_NXSEyy9Q7VZJd2tIFK_iGhT-pd1t-6YpKzhr8nVvaGlfFv36gw","width":2048},{"height":3024,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/115623591626747192241/photos\">a beauregard</a>"],"photo_reference":"CmRaAAAA8jPB2uPOxWd_-1inL9GMO7tWdIfhvaVCYFODb2yessHQ_Jy7Wyo99z9Qrlohho0tdFlz4GyuGgtO1CEirdeLYJJb25QbX4ZdBClQwDjYBDUC0spd_tPFLAnsFCLk664ZEhBGqm26u-aeqnDBQzWKPTc2GhR2OUmpnyErQr3rsbmOC92nva595A","width":4032},{"height":2988,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/111065387557395503043/photos\">Vicky and Snickers Anderson</a>"],"photo_reference":"CmRZAAAAk-Z3Ml_aMD8_xwpZBT85JDfd9dtrq_LponeZICHGhbRp1KozF4H8Ig36ikIYcbJyH0DWf-4_ylRWviWYDBkuJWcKyvHRSzjquxuE_MNN5FjjkWX3aPBcNWxTnh9RQ8OcEhAE9Y91__B86071fFBuZFDAGhSF5XxgaAxsUl8Im4_lgVCMIgGPNA","width":5312},{"height":4032,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/115623591626747192241/photos\">a beauregard</a>"],"photo_reference":"CmRaAAAAgaVjlQzuv7F-88pv8GPd-IkGzo9oH1gQoKc_ZmVmQjVqWeeljkVLSsti3oLzkau3IXW3JOJ7KyOvlsOUTGNOJnBA31OIttfCbmCFPSCiyywmu7yUHnf_w0CKLw5hT_RWEhCpSZtnAKj3umsNcJUtI7K3GhR4g14ff5ekvKuB_rW0YlL_FWotxg","width":3024},{"height":3024,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/115623591626747192241/photos\">a beauregard</a>"],"photo_reference":"CmRaAAAA3so1UtaPCAqJlbpxhyfbBefycY4FspxrNPDBH-xeBoTMTgkTCb3uT9p8l3Umgu2VpCatqTu3fDFgbj5VmjNGvk7ngtYYhD2UCMXoCxuxHjL9kzvoaDdL8SoyJUFWBnlZEhCeTxLqrBsM8R6IPd8iK_h2GhTmgvfEor4xDZNha0teaiw3KyHhrQ","width":4032},{"height":4032,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/111580933990207571063/photos\">Michael Brady</a>"],"photo_reference":"CmRaAAAAlxoITLsevfPLrsV5rCHt1IuJBs-sKE6tTuQmmKg6xbAi2puyrhlG3aEY9GoFUCRpApEL30TssUQPN31U6kkCdIDofmJktXYvpvJ9nb2EItJDyVE32s7XE15XJEx3mvPKEhA19O6fhPnSKbSD2bE-lTqPGhRjw-0d1TspjpQC3yhez71pWyJKOA","width":3024},{"height":2592,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/110913511470452374693/photos\">Maxwell Murdoch Snelling</a>"],"photo_reference":"CmRaAAAApttZtrF9LRbcVHeCokgPipfdh-Gs-v6G9ze8vAXh2YPP8PEx3cWy7AEgY72_79VFPAMWTkKgbrOceNiqn7t6R0USgUvD9hnPq_WLc9jPt-Fbwt0HwoO2QZtb0l7Xry_IEhD9SRgHx9fiVLGWyxfIs67LGhSprzTG6Srq3f4HkpBZhytA__2wvQ","width":1944},{"height":3024,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/115623591626747192241/photos\">a beauregard</a>"],"photo_reference":"CmRaAAAA2lGLeytP1Eo0nIe_a-ml4eW9xdMXbiTo8BQij_tL2IBtd9Qd1pJDEhPEF-4ypXhraLSgTLa9Bv8D6pOelpvRoEw3GoO5_G1ZPyV5cDqqRXYEaZL7AGN77otQ0Qo50rb9EhBK4oPCeFf4BKD5_lyjfqKmGhR59yKmhuLhv-qTKzyD0jlau1YwHQ","width":4032},{"height":5312,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/110848241892026538641/photos\">Dennis Shanoff</a>"],"photo_reference":"CmRaAAAAdlDGdD00jBf5hOZ49bpJUfjPzH0m0G5sIXOkP5KEqbksfqL33k-9uxUyW3LqhJjat4Jbggq6C_8bmfsclSFjdhJz2NayfOsE-nyyMNEN-GwPtZfhpc50HT9Nkn5jKNWxEhCCkJ6WpbssuAGn-JdibF_LGhSPJDtJGvkFcwb6HRhoVxWBrR4EbQ","width":2988},{"height":3024,"html_attributions":["<a href=\"https://maps.google.com/maps/contrib/115623591626747192241/photos\">a beauregard</a>"],"photo_reference":"CmRaAAAAL5u0ksBwwzBYwycDHNqTEtKqdaGpPRB9REBvNVl_6E4HgiuEOkYpZphocizNd-EozrlE05Zwz1wC2ZcibsqF0CI3-wP8yJyFC76Lu-yZkHrNyAUxs85GGg8xOLTUAzlXEhBQne5bG7eQQn8pW8DszBqVGhQqkbf-vt6WC8QRdGzuGeUpoYQaww","width":4032}],"place_id":"ChIJbQa_U41q4okRJsbAM3zX_WM","rating":3.4,"reference":"CmRRAAAAPU4b-A3ebudL3C27zOGt3pH0uqRXiRmY_feRH3O4SXJpIB7ghnQRsOwDRe0nUssISkr3V_pdwv6BXxHeMvneYGUWLFOTRe_aUlnDQKGpkrXj3bOoFBx7QGdo5ZWgJbKpEhDIJX5_r27SlpSsb9hLIpHZGhSC_JiK3IVPnom3nuQLNOOXZUFsaw","reviews":[{"author_name":"Papa Joe Gaudet","author_url":"https://www.google.com/maps/contrib/111381118825182249763/reviews","language":"en","profile_photo_url":"https://lh4.googleusercontent.com/-lJEMylIg98M/AAAAAAAAAAI/AAAAAAAATvY/njN-66RVAp0/s128-c0x00000000-cc-rp-mo-ba5/photo.jpg","rating":5,"relative_time_description":"2 weeks ago","text":"I dropped in on a cold quiet Tuesday evening. The food was outstanding as was the service. I wish I had more time to enjoy the atmosphere. Next time (and there will be a next time), I'll bring a date. She'll very likely appreciate my good taste. BTW, they are hiring right now and the staff looks happy.","time":1515541362},{"author_name":"Christine D'","author_url":"https://www.google.com/maps/contrib/110635532521172813159/reviews","language":"en","profile_photo_url":"https://lh6.googleusercontent.com/-neX3OzkbUe4/AAAAAAAAAAI/AAAAAAAAAAA/AA6ZPT6K8ZOkQiewnkB6bxg3VaKuVFIa5Q/s128-c0x00000000-cc-rp-mo-ba4/photo.jpg","rating":5,"relative_time_description":"a week ago","text":"Late lunch on a Friday afternoon. We had sandwiches (a burger and chicken sand.) which were both quite good. Flat bread with goat cheese bruschetta app was delicious! Waiter/bartender was knowledgeable and SO personable. Even if we had struck out with our food selections he would be reason enough to go back. He engaged with every patron in the place. The only thing I'm sorry about is that I didn't get his name. The Crazy Goat is lucky to have him.","time":1515820810},{"author_name":"Lee Goodwin","author_url":"https://www.google.com/maps/contrib/117058651202426601746/reviews","language":"en","profile_photo_url":"https://lh4.googleusercontent.com/-XcqH9W_RTeY/AAAAAAAAAAI/AAAAAAAAAEI/Y75Cnl2eE_k/s128-c0x00000000-cc-rp-mo/photo.jpg","rating":5,"relative_time_description":"a month ago","text":"The food is delicious. I had a special of stuffed roasted acorn squash, unreal. The atmosphere and server John were excellent. Can't wait to come here again!","time":1512852799},{"author_name":"happy2say1hello","author_url":"https://www.google.com/maps/contrib/109024209580809571111/reviews","language":"en","profile_photo_url":"https://lh3.googleusercontent.com/-Oct8pO1R3w4/AAAAAAAAAAI/AAAAAAAAAAA/AA6ZPT4gyixHn6uuGcL_-2l1PmC9ztLTUg/s128-c0x00000000-cc-rp-mo/photo.jpg","rating":1,"relative_time_description":"a month ago","text":"I worked here and the owners treated the staff like garbage. Worst job experience I've ever had. Not to mention the food wasn't that great but so expensive. Please save your money for a restaurant that treats its staff better.","time":1512504706},{"author_name":"Tracy Long","author_url":"https://www.google.com/maps/contrib/102667733449818335247/reviews","language":"en","profile_photo_url":"https://lh4.googleusercontent.com/-uc5qHDhCNjs/AAAAAAAAAAI/AAAAAAAAAAA/AA6ZPT6KjwgNKU-cDRvtgpFDyG809i0BlA/s128-c0x00000000-cc-rp-mo/photo.jpg","rating":3,"relative_time_description":"in the last week","text":"Server was very personable and friendly. Food was ok. Very limited menu.  Liked the ambiance.","time":1516936344}],"scope":"GOOGLE","types":["restaurant","food","point_of_interest","establishment"],"url":"https://maps.google.com/?cid=7205151907306849830","utc_offset":-300,"vicinity":"76 North Main Street, Concord","website":"http://www.crazygoatconcord.com/"},"status":"OK"}

函数do\u api\u call（）{
$url=$my_url；
$data=文件内容（$url）；
$rev=json_encode（$data）；
echo$rev；
}
{“html_属性”：[]，“结果”：{“地址组件”：[{“long_名称”：“76”，“short_名称”：“76”，“类型”：[“street_number”]，{“long_名称”：“North Main street”，“short_名称”：“N Main St”，“types”：[“route”]}，{“long_名称”：“Concord”，“short_名称”：“Concord”，“types”：[“Location”，“political”]，{“long_名称”：“Merrimack县”，“short_名称”：“Merril县”，“types”：[“行政区二级”、“政治区”]，{“长名”：“新罕布什尔州”；“短名”；“NH”；“类型”；[“行政区一级”、“政治区”]，{“长名”；“美国”；“短名”；“美国”；“类型”；[“国家”、“政治区”]，{“长名”；“03301”；“类型”；[“邮政编码”]，{“长名”；“4915”；“短名”；“4915”；“类型”；[”邮政编码后缀“]}]，“adr地址”：“美国新罕布什尔州康科德大街76号，邮编03301-4915”，“格式化地址”：“美国新罕布什尔州康科德大街76号，邮编03301”，“格式化电话号码”：（603）856-7181”，“几何体”：{“位置”：{“纬度”：43.20638719999999，“液化天然气”：-71.5359407999999}，“视口”：{“东北面”：{“纬度”：43.20770828029149，“液化天然气”：“西南面”：“纬度”：“：43.2050103197085，“液化天然气”：-71.5374735802915}}}，“图标”：”https://maps.gstatic.com/mapfiles/place_api/icons/restaurant-71.png“，”id“：”9496ddb6eb5f976d65d829a5bc2a11c16235f24c“，”国际电话号码“：”+1603-856-7181“，”姓名“：”疯狂的山羊“，”营业时间“：{”现在营业“：真的”，期间“：”[{”结束“：{”天：0，“时间”：“1800”，”营业“{”天：0，“时间”：“1200”}{“天”：2、“时间”：2、“时间”：2、“时间”2、“开放的”开放：{“天”：2、“时间”2、“时间”为“1200”}，{“关闭的”开放：{“天”：3、“时间”：3、“时间”3、“时间”3、“开放的”开放：{“天”：2、“时间”2、“开放的”开放：{{“天”：2、“时间”4、“时间”4、“时间”4、“时间”是指“1200}，}，}，}，{}，}，{“开放的开放开放的，{}，{}，{{“日”开放：{“日”开放的日子日子”5、“日”5、“日”5、“时间”时间”5、“时间”、“时间”、“时间”5、“时间”、“时间”时间”、“时间”、“时间”、“时间”将将将将将开放的周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一周一Ay_文本：[“星期一：休息”、“星期二：12:00-10:00下午”、“星期三：12:00-10:00下午”、“星期四：12:00-10:00下午”、“星期五：12:00-10:00下午”、“星期六：12:00-10:00下午”、“星期日：12:00-6:00下午”]，“照片”：[{“高度”：1536，“html\U属性”：[”“]，“照片参考”：”CMRAAAUVKW68MBNUWHZYE8NW6AFMEYFQR8HOZBNMLFFREEXDZBGQRKY2NTZRO\U f8cBWLRzVTajatvGjpv9Mffqv_zeCFuGJIz0jBreCN-0D8YKC11GZJWZT-TVS-DWVVVX0EFEHD\u NXSY9Q7VZJD2TIFK-pd1t-6YPKR8NVAGLFFv36GW，“宽度”：2048}，{“高度”：3024，“html属性”：“照片[”，“参考”CMRAAA8JPB2UPOxWD-1INL9GMO7TWDIFHVcyFoodB2YESHQ\U JY7WYO99Z9QRLOHHO0TDFLZ4GYUGG-CEIREDJJB25QBX4ZDBCLQWDJYBDUC0SPD\U TPLANSCLK664ZEHBGQM26U-AEQNDBQZWKPTC2GHR2OUMPERQR3RSBMOC92NVA595A，“宽度”：4032}，{“高度”：2988，“html\U属性：”，“照片参考”：”CmRZAAAAk-Z3Ml_aMD8_xwpZBT85JDfd9dtrq_LponeZICHGhbRp1KozF4H8Ig36ikIYcbJyH0DWf-4_ylrwwwwwydbkujwckyvhrszjquxue_MNN5FjjkWX3aPBcNWxTnh9RQ8OcEhAE9Y91_b86071; fbuzfddaghsf5xxgaxsul8im4_lgvcmiggna，“宽度”：5312}，{“高度”：4032，“html属性”：“，”照片参考“：”CmRaAAAAgaVjlQzuv7F-88pv8GPd-IkGzo9oH1gQoKc"ZMVMQVQQWEELJKVLSSTI3OLZKAU3W3JJJ7KYOVLSOUTNOGNOJNBA31OITTFCBMCFPSCIYYWMU7YUHNF W0CLLW5HT(R0CpstNAKJ3UMSNCJUti7K3GHR4G14FF5EKVKKKUU rW0YlL(FWotxg)宽度：3024)，{“高度”：3024，“html属性”：[”，“照片参考”CMRAAAAA3SO1TAPCAQJLBPxHYBBFYCY4FSPXRNPDBH-XEBOTMTGKTCB3UT9P8L3UMGU2VPCATQTU3FDFGBJ5VMJNGVK7NGTYYHD2UCMXOCXUJJJL9KZVOADDL8SOYJUBFBNLZEHCETXLQRBSM8R6IPD8IK\H2GHTMEGEOR4XDN0TEAW3KHHRQ，“宽度”：4032，{“高度”：4032，“html属性：”，“照片参考”：”CMRAAAALXIOTLSEVPFPLRSV5RCHT1IUJBS-SKE6TUQMMKG6XBAI2PUYRHLG3AEY9GOFUCRPAPEL30TSQPN31U6KKCDIDOFMJKTXYVPVJ9NB2ITJDYVE32S7XE15XJEX3MVPKEHA19O6FHPNSKD2BE-lTqPGhRjw-0d1TspjpQC3yhez71pWyJKOA，“宽度”：3024}，{“高度”：2592，“html属性：”，“照片参考”：”CMRAAAPTTZTRF9LRBCVHECOKGPIPFDH-Gs-v6G9ze8vAXh2YPP8PEx3cWy7AEgY72_79VFPAMWKKGBROCENIQN7T6R0USGUVD9HNPQ_WLc9jPt-FBWT0HW0HW0QZTB0L7XRY_IEHD9SRGHX9FIVYX67LGHSPRZTG6SRQ3F4HKPBZHYTA((2;(ơ(ơơơơơơơơơơơCmRaAAAA2lGLeytP1Eo0nIe a-ML4EW9XDMXBITO8BKQI Tl2BTD9QD1PjDEHPEF-4YPRALSGTLA9BV8POELPVROEW3GOO5-G1ZPYV5CDQQRXYEAZL7AGN77OTQO50RB9EHBK4OPCEFF4BKD5-lyjfqKmGhR59yKmhuLhv-qTKzyD0jlau1YwHQ，“宽度”：4032}，{“高度”：5312，“html属性：”，“照片参考”：“，”CMRAAAADLDGD00JBF5HOZ49BPJUFJPZH0M0G5SIXOKP5KEQBKSFQL33K-9uxUyW3LqhJjat4Jbggq6C_8BMFSCJJJZ2NAYFOSE-NYMNEN-GWPTZFHPC50HT9NKN5JKNWXEXECKJ6WPBSUAGN-JDJIBF_LGHSPJDTJGVKFB6HRHOVXWBRR4EBQ，“宽度”：2988}，{“高度”：3024，“htmlā属性”：[”“]，“照片参考”：”CMRAAAL5U0KSBWWZBYYKDHNQTETKQDAGPRPRB9REBVNVL6E4Hgiukypzphociznd-EozrlE05Zwz1wC2ZcibsqF0CI3-WP8YYYFC76LU-YZKHnyauxS85G8OLTUAXEQN8PW8DSZBQVGHQQQKBF-VT6WC8QRDGZUGZUGPOYQAWW，“宽度”：4032}，“地点id:“ChIJbQa”：Q4Q4RJAM3ZBQ3ZUKWWWW3:“参考等级”CMRRAAAPU4B-A3EBUDL3C27ZOGT3PH3O4SXJPIB7GHNQRSOWDRE0NUSSISSKR3V\PDW6BXXHEMVNEYGUWLFOTRE\u AundqkgpkrxJ3BOOBX7QGDO5WGJBKPEHDIJX5\u r27SlpSsb9hLIpHZGhSC\u JiK3IVPnom3nuQLNOOXZUFsaw“，[评论]：[{“作者姓名”：“Papa Joe Gaudet”，“作者url”：”https://www.google.com/maps/contrib/111381118825182249763/reviews“，”语言“：”en“，”个人资料照片网址“：”https://lh4.googleusercontent.com/-lJEMylIg98M/AAAAAAAAAAI/AAAAAAAATvY/njN-66RVAp0/s128-c0x00000000-cc-rp-mo-ba5/photo.jpg“评级”：5，“相对时间描述”：“2周前”，“文本”：“我偶然发现了一个c
$rev = json_decode($data,true);
$reviews = $rev["result"]["reviews"];
foreach($reviews as $review){
    $author_name = $review["author_name"];
    echo $author_name."<br>";
}