我有以下数据库条目：
{
"_id": ObjectId("4d2339f9772c4bae5403dd47"),
"uname": "Eamorr",
"posts": {
"0": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1294154233,
"UTC": "2011-01-04T15: 17: 13+00: 00",
"ip": "134.226.1.229",
"id": "974vi95ljn5aa22ykd21"
},
"1": {
"comment": "wddddd",
"fromUname": "Anonymous",
"time": 1294154360,
"UTC": "2011-01-04T15: 19: 20+00: 00",
"ip": "134.226.1.229",
"id": "519fy1sj6f8mc4ws8v1y"
},
"2": {
"comment": "asdf2",
"fromUname": "Anonymous",
"time": 1294162680,
"UTC": "2011-01-04T17: 38: 00+00: 00",
"ip": "86.40.63.120",
"id": "ho27be183q3kqxi2w618"
},
"3": {
"comment": "asdf3",
"fromUname": "Anonymous",
"time": 1294162759,
"UTC": "2011-01-04T17: 39: 19+00: 00",
"ip": "86.44.19.49",
"id": "bib1184hb8e90f67zhac"
},
"4": {
"comment": "Eamonn",
"fromUname": "Anonymous",
"time": 1294162884,
"UTC": "2011-01-04T17: 41: 24+00: 00",
"ip": "86.44.19.49",
"id": "rbq18o0r73mdfc8a023n"
},
"5": {
"comment": "Eamonn2",
"fromUname": "Anonymous",
"time": 1294162967,
"UTC": "2011-01-04T17: 42: 47+00: 00",
"ip": "86.44.19.49",
"id": "p1210t688d0g5c0t97jx"
},
"6": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1294235472,
"UTC": "2011-01-05T13: 51: 12+00: 00",
"ip": "134.226.1.229",
"id": "y128u1m57bw1n711gr8o"
},
"7": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1294235557,
"UTC": "2011-01-05T13: 52: 37+00: 00",
"ip": "134.226.1.229",
"id": "5g1xc51mm057p39c5l1p"
},
"8": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1294235617,
"UTC": "2011-01-05T13: 53: 37+00: 00",
"ip": "134.226.1.229",
"id": "m35g1ug0220g82lq8z31"
},
"9": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1294240505,
"UTC": "2011-01-05T15: 15: 05+00: 00",
"ip": "134.226.1.229",
"id": "i9ngh02d8ifg464088x2"
},
"10": {
"comment": "boards.ie",
"fromUname": "Anonymous",
"time": 1294240542,
"UTC": "2011-01-05T15: 15: 42+00: 00",
"ip": "134.226.1.229",
"id": "vcu1ks7ev1swaeu6z2r4"
},
"11": {
"comment": "Hello",
"fromUname": "Eamorr",
"time": 1295618860,
"UTC": "2011-01-21T14: 07: 40+00: 00",
"ip": "134.226.252.160",
"id": "00kk05gp258clzk15mxs"
},
"12": {
"comment": "asdf",
"fromUname": "Eamorr",
"time": 1295624407,
"UTC": "2011-01-21T15: 40: 07+00: 00",
"ip": "212.129.64.223",
"id": "6knwupaws7641a7fvsq2"
},
"13": {
"comment": "asdf",
"fromUname": "Eamorr",
"time": 1295624465,
"UTC": "2011-01-21T15: 41: 05+00: 00",
"ip": "212.129.64.223",
"id": "rl4k3i710xkwr5njq36l"
},
"14": {
"comment": "Hi",
"fromUname": "Eamorr",
"time": 1295635332,
"UTC": "2011-01-21T18: 42: 12+00: 00",
"ip": "212.129.64.223",
"id": "w2q11m6kaqdw9p8k44v4"
},
"15": {
"comment": "Hello!!!",
"fromUname": "Eamorr2",
"time": 1296082365,
"UTC": "2011-01-26T22: 52: 45+00: 00",
"ip": "86.44.21.90",
"id": "001cwy768eik620rka91"
},
"16": {
"comment": "Hello",
"fromUname": "Eamorr",
"time": 1296280251,
"UTC": "2011-01-29T05: 50: 51+00: 00",
"ip": "86.44.20.113",
"id": "0wfe8r9490lf5r1s11kv"
},
"17": {
"comment": "Hello",
"fromUname": "Eamorr",
"time": 1298632583,
"UTC": "2011-02-25T11: 16: 23+00: 00",
"ip": "86.44.49.74",
"id": "71k5cn8zrmsudy77513g"
},
"18": {
"comment": "just wanted to say hi",
"fromUname": "Anonymous",
"time": 1299175499,
"UTC": "2011-03-03T18: 04: 59+00: 00",
"ip": "71.235.146.42",
"id": "u2ejx9d812vk6147me6m"
},
"19": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299238987,
"UTC": "2011-03-04T11: 43: 07+00: 00",
"ip": "212.129.64.223",
"id": "ibl84549kz220va052qm"
},
"20": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299239150,
"UTC": "2011-03-04T11: 45: 50+00: 00",
"ip": "212.129.64.223",
"id": "503hl41wmb73756h1oe0"
},
"21": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299239230,
"UTC": "2011-03-04T11: 47: 10+00: 00",
"ip": "212.129.64.223",
"id": "8894rpqow2i38b777cky"
},
"22": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299239341,
"UTC": "2011-03-04T11: 49: 01+00: 00",
"ip": "212.129.64.223",
"id": "37885igze3q81wcf8ko7"
},
"23": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299239409,
"UTC": "2011-03-04T11: 50: 09+00: 00",
"ip": "212.129.64.223",
"id": "3p2095098p96315u7632"
},
"24": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299239561,
"UTC": "2011-03-04T11: 52: 41+00: 00",
"ip": "212.129.64.223",
"id": "j8d79nwb65u4cl8808l8"
},
"25": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299239727,
"UTC": "2011-03-04T11: 55: 27+00: 00",
"ip": "212.129.64.223",
"id": "202ts1046jkuysd78509"
},
"26": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299239793,
"UTC": "2011-03-04T11: 56: 33+00: 00",
"ip": "212.129.64.223",
"id": "6ye47y3tr9syt20k5kgp"
},
"27": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299239830,
"UTC": "2011-03-04T11: 57: 10+00: 00",
"ip": "212.129.64.223",
"id": "55g039yzp4013bk4aqtr"
},
"28": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299240076,
"UTC": "2011-03-04T12: 01: 16+00: 00",
"ip": "212.129.64.223",
"id": "8w7sy170dku4y9o06d1g"
},
"29": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299240113,
"UTC": "2011-03-04T12: 01: 53+00: 00",
"ip": "212.129.64.223",
"id": "1noki588r7796v5mti2f"
},
"30": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299240152,
"UTC": "2011-03-04T12: 02: 32+00: 00",
"ip": "212.129.64.223",
"id": "l175d3aew064feaw9126"
},
"31": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299240245,
"UTC": "2011-03-04T12: 04: 05+00: 00",
"ip": "212.129.64.223",
"id": "5rpz421351p7qrv5o7rk"
},
"32": {
"comment": "Hello2",
"fromUname": "Anonymous",
"time": 1299240280,
"UTC": "2011-03-04T12: 04: 40+00: 00",
"ip": "212.129.64.223",
"id": "n031287n17eo14v9tuda"
},
"33": {
"comment": "Hello",
"fromUname": "Anonymous",
"time": 1299240365,
"UTC": "2011-03-04T12: 06: 05+00: 00",
"ip": "212.129.64.223",
"id": "609773uq8rsv5vuw4s0k"
},
"34": {
"comment": "Hello2",
"fromUname": "Anonymous",
"time": 1299240406,
"UTC": "2011-03-04T12: 06: 46+00: 00",
"ip": "212.129.64.223",
"id": "57w4v64ekl76np304d9k"
},
"35": {
"comment": "Hello3",
"fromUname": "Anonymous",
"time": 1299240441,
"UTC": "2011-03-04T12: 07: 21+00: 00",
"ip": "212.129.64.223",
"id": "7v6agdd2xdgm2zyya5pb"
},
"36": {
"comment": "Hello",
"fromUname": "Eamorr",
"time": 1299241138,
"UTC": "2011-03-04T12: 18: 58+00: 00",
"ip": "212.129.64.223",
"id": "1qp2a2837x31791xxg0s"
},
"37": {
"comment": "asdf",
"fromUname": "Eamorr",
"time": 1299241395,
"UTC": "2011-03-04T12: 23: 15+00: 00",
"ip": "212.129.64.223",
"id": "x7app929kw9l4p1bk977"
},
"38": {
"comment": "lkjh",
"fromUname": "Anonymous",
"time": 1299241477,
"UTC": "2011-03-04T12: 24: 37+00: 00",
"ip": "212.129.64.223",
"id": "ea9ws389971pmt6waee8"
},
"39": {
"comment": "Hello",
"fromUname": "Eamorr",
"time": 1299244791,
"UTC": "2011-03-04T13: 19: 51+00: 00",
"ip": "212.129.64.223",
"id": "bfk9tm2gt6z254739z08"
},
"40": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1299249252,
"UTC": "2011-03-04T14: 34: 12+00: 00",
"ip": "212.129.64.223",
"id": "ufaf48c1qd1e0n07s8m5"
},
"41": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1299250483,
"UTC": "2011-03-04T14: 54: 43+00: 00",
"ip": "212.129.64.223",
"id": "3k65kne9h0pk410xzc0p"
},
"42": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1299251270,
"UTC": "2011-03-04T15: 07: 50+00: 00",
"ip": "212.129.64.223",
"id": "t7740r0fcby6gowlw9xk"
},
"43": {
"comment": "Hi, how's it going?",
"fromUname": "Eamorr",
"time": 1299683127,
"UTC": "2011-03-09T15: 05: 27+00: 00",
"ip": "212.129.64.223",
"id": "9l864xc2agxsdjo4257y"
},
"44": {
"comment": "3hvdn",
"fromUname": "Anonymous",
"time": 1299683730,
"UTC": "2011-03-09T15: 15: 30+00: 00",
"ip": "212.129.64.223",
"id": "4frfsf12xwz1to9po0w3"
},
"45": {
"comment": "Hi there",
"fromUname": "Anonymous",
"time": 1299684889,
"UTC": "2011-03-09T15: 34: 49+00: 00",
"ip": "212.129.64.223",
"id": "hw4i9mk906n1qvg63o2d"
},
"46": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1313371240,
"UTC": "2011-08-15T02: 20: 40+01: 00",
"ip": "212.129.66.130",
"id": "0f4o199394hzqyv6by89"
},
"47": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1313430246,
"UTC": "2011-08-15T18: 44: 06+01: 00",
"ip": "212.129.66.131",
"id": "73xbuqwauhls17cb3dc3"
},
"48": {
"comment": "vvvvvvvv",
"fromUname": "Anonymous",
"time": 1313430944,
"UTC": "2011-08-15T18: 55: 44+01: 00",
"ip": "212.129.66.131",
"id": "44dw9427805j93g51u2h"
},
"49": {
"comment": "vvvvvvvv",
"fromUname": "Anonymous",
"time": 1313431402,
"UTC": "2011-08-15T19: 03: 22+01: 00",
"ip": "212.129.66.131",
"id": "lo1n5i2qpxa562o606hd"
},
"50": {
"comment": "vvvvvvvv",
"fromUname": "Anonymous",
"time": 1313431865,
"UTC": "2011-08-15T19: 11: 05+01: 00",
"ip": "212.129.66.131",
"id": "fu01r3z2vk12ar0avk65"
},
"51": {
"comment": "xxxxccccc",
"fromUname": "Anonymous",
"time": 1313432538,
"UTC": "2011-08-15T19: 22: 18+01: 00",
"ip": "212.129.66.131",
"id": "1fk5u60nkok8hyuzd0e6"
},
"52": {
"comment": "xxxxccccc",
"fromUname": "Anonymous",
"time": 1313432587,
"UTC": "2011-08-15T19: 23: 07+01: 00",
"ip": "212.129.66.131",
"id": "x20adl504ur7652r7x7b"
},
"53": {
"comment": "'cccccccccccvvvvv",
"fromUname": "Anonymous",
"time": 1313432791,
"UTC": "2011-08-15T19: 26: 31+01: 00",
"ip": "212.129.66.131",
"id": "nwk0m8lq7cc3s9748cve"
},
"54": {
"comment": "aaaassss",
"fromUname": "Anonymous",
"time": 1313432849,
"UTC": "2011-08-15T19: 27: 29+01: 00",
"ip": "212.129.66.131",
"id": "99fj5rl2ne7hzr78c691"
},
"55": {
"comment": "asdffffffff",
"fromUname": "Anonymous",
"time": 1313477562,
"UTC": "2011-08-16T07: 52: 42+01: 00",
"ip": "212.129.66.131",
"id": "y81iemo7t501dlwo3e52"
},
"56": {
"comment": "Charlie",
"fromUname": "Anonymous",
"time": 1313525636,
"UTC": "2011-08-16T21: 13: 56+01: 00",
"ip": "212.129.66.130",
"id": "k6bi9czy2g1941c7cid5"
},
"57": {
"comment": "asdf",
"fromUname": "Anonymous",
"time": 1314036401,
"UTC": "2011-08-22T19: 06: 41+01: 00",
"ip": "212.129.66.131",
"id": "zs4v1f7sr82f106p42gr"
},
"58": {
"comment": "asdf2",
"fromUname": "Anonymous",
"time": 1314036666,
"UTC": "2011-08-22T19: 11: 06+01: 00",
"ip": "212.129.66.131",
"id": "jg3y5xwilljq6hi7mpwd"
},
"59": {
"comment": "qwerty",
"fromUname": "Eamorr",
"time": 1314550970,
"UTC": "2011-08-28T18: 02: 50+01: 00",
"ip": "212.129.66.131",
"id": "uvoh7abs5u2kfogb28kr"
},
"60": {
"comment": "qwerty",
"fromUname": "Eamorr",
"time": 1314551143,
"UTC": "2011-08-28T18: 05: 43+01: 00",
"ip": "212.129.66.131",
"id": "u6eqi91y539mgv2ufxfw"
},
"61": {
"comment": "qwerty2",
"fromUname": "Eamorr",
"time": 1314551158,
"UTC": "2011-08-28T18: 05: 58+01: 00",
"ip": "212.129.66.130",
"id": "1dxz445s16qi17020y26"
},
"62": {
"comment": "jacks",
"fromUname": "Eamorr",
"time": 1314633471,
"UTC": "2011-08-29T16: 57: 51+01: 00",
"ip": "212.129.66.131",
"id": "3nkq2cxq2okb205z9ao6"
}
}
}
我正在尝试根据'id'删除条目。
因此，给定id“3nkq2cxq2okb205z9ao6”（恰好是最后一个条目，＃62），如何更新此mongo集合以删除元素62？
我真的被困住了。我看到了类似的stackoverflow问题，但我真的需要一些特定的问题。
非常感谢任何见解。
非常感谢，
答案 0 :(得分：1)
如果我们谈论的ID是MongoId（自动创建），那么您应该使用;
$collection->remove(array('id' => new MongoId('3nkq2cxq2okb205z9ao6')), true);
但如果id字段是你随机生成的东西，那么下面的代码就可以了;
$collection->remove(array('id' => '3nkq2cxq2okb205z9ao6'));
答案 1 :(得分：0)
答案 2 :(得分：0)
好的，这就是我设法做的事情（尽管并不理想）：
$idx=0;
for($i=0;$i<sizeof($posts);$i++){
$post=$posts[$i];
if($post['id']==$id){
$idx=$i;
break;
}
}
unset($posts[$idx]);
$collection->update(array('uname'=>$uname),array('$set'=>array('posts'=>$posts)));