我有一个大的多维JSON数组，我试图用PHP解析（由于约束需要PHP）。我在变量中有以下内容然后我正在做
此字符串上的json_decode。我已尝试使用和不使用true来保存为数组。
$ json = json_decode（$ result，true）;
然后我尝试引用甚至像
这样简单的东西$ json ['data'] ['cfgversion']它不起作用。我也尝试过没有真实的并使用$ json-＆gt; data-＆gt; cfgversion
我想要的是
“port_overrides”：[{ “port_idx”：6， “portconf_id”：“59d18fe9b6081ed3f75d3355” }，{ “autoneg”：是的， “孤立”：虚假， “名称”：“端口8”， “op_mode”：“切换”， “poe_mode”：“passthrough”， “port_idx”：8， “portconf_id”：“575797d9429272985a1db175”， “stormctrl_bcast_enabled”：false， “stormctrl_mcast_enabled”：false， “stormctrl_ucast_enabled”：false }]，
我想修改该数组中的portconf_id之类的内容，然后将其推回（这是一个Unifi交换机）
任何想法都会很棒。我已经查看了其他JSOn PHP解析答案，但它们似乎对我不起作用。提前谢谢。
{
"data": [{
"_id": "599cab6084aa6b25d7e356cd",
"_uptime": 1857874,
"adopted": true,
"board_rev": 10,
"bytes": 1057778283548,
"cfgversion": "9ef05412066832e5",
"config_network": {
"dns1": "10.0.1.1",
"dns2": "8.8.8.8",
"gateway": "10.0.1.1",
"ip": "10.0.1.15",
"netmask": "255.255.255.0",
"type": "static"
},
"connect_request_ip": "10.0.1.15",
"connect_request_port": "42723",
"considered_lost_at": 1510378663,
"device_id": "599cab6084aa6b25d7e356cd",
"dhcp_server_table": [],
"dot1x_portctrl_enabled": false,
"downlink_table": [{
"full_duplex": true,
"mac": "80:2a:a8:53:77:4b",
"port_idx": 8,
"speed": 1000
}],
"ethernet_table": [{
"mac": "f0:9f:c2:1e:3c:d1",
"name": "eth0",
"num_port": 8
}, {
"mac": "f0:9f:c2:1e:3c:d2",
"name": "srv0"
}],
"flowctrl_enabled": false,
"fw_caps": 7685,
"general_temperature": 0,
"guest-num_sta": 0,
"has_fan": false,
"inform_authkey": "543fcde7cd54091e622a93686d1b3ecb",
"inform_ip": "10.0.1.52",
"inform_url": "http://10.0.1.52:8080/inform",
"ip": "10.0.1.15",
"jumboframe_enabled": false,
"known_cfgversion": "9ef05412066832e5",
"last_seen": 1510378492,
"led_override": "default",
"license_state": "registered",
"locating": false,
"mac": "f0:9f:c2:1e:3c:d1",
"model": "US8",
"name": "TV Room Switch",
"next_heartbeat_at": 1510378549,
"num_sta": 6,
"overheating": false,
"port_overrides": [{
"port_idx": 6,
"portconf_id": "59d18fe9b6081ed3f75d3355"
}, {
"autoneg": true,
"isolation": false,
"name": "Port 8",
"op_mode": "switch",
"poe_mode": "passthrough",
"port_idx": 8,
"portconf_id": "575797d9429272985a1db175",
"stormctrl_bcast_enabled": false,
"stormctrl_mcast_enabled": false,
"stormctrl_ucast_enabled": false
}],
"port_table": [{
"aggregated_by": false,
"autoneg": true,
"bytes-r": 11439,
"dot1x_mode": "auto",
"dot1x_status": "authorized",
"enable": true,
"flowctrl_rx": false,
"flowctrl_tx": false,
"full_duplex": true,
"is_uplink": true,
"jumbo": false,
"lldp_table": [{
"lldp_chassis_id": "80:2A:A8:5D:92:A4",
"lldp_port_id": "0/15",
"lldp_system_name": "MainSwitch"
}],
"masked": false,
"media": "GE",
"name": "Port 1",
"op_mode": "switch",
"poe_caps": 0,
"port_idx": 1,
"port_poe": false,
"portconf_id": "575797d9429272985a1db175",
"rx_broadcast": 5988397,
"rx_bytes": 396387817490,
"rx_bytes-r": 2372,
"rx_dropped": 92655,
"rx_errors": 0,
"rx_multicast": 8148687,
"rx_packets": 606001308,
"speed": 1000,
"stp_pathcost": 0,
"stp_state": "forwarding",
"tx_broadcast": 1142032,
"tx_bytes": 661390466058,
"tx_bytes-r": 9066,
"tx_dropped": 0,
"tx_errors": 0,
"tx_multicast": 871097,
"tx_packets": 676585183,
"up": true
}, {
"aggregated_by": false,
"autoneg": true,
"bytes-r": 2415,
"dot1x_mode": "auto",
"dot1x_status": "authorized",
"enable": true,
"flowctrl_rx": false,
"flowctrl_tx": false,
"full_duplex": true,
"is_uplink": false,
"jumbo": false,
"lldp_table": [],
"masked": false,
"media": "GE",
"name": "Port 2",
"op_mode": "switch",
"poe_caps": 0,
"port_idx": 2,
"port_poe": false,
"portconf_id": "575797d9429272985a1db175",
"rx_broadcast": 72457,
"rx_bytes": 3344218780,
"rx_bytes-r": 507,
"rx_dropped": 3542,
"rx_errors": 0,
"rx_multicast": 144549,
"rx_packets": 36641209,
"speed": 1000,
"stp_pathcost": 0,
"stp_state": "forwarding",
"tx_broadcast": 7058001,
"tx_bytes": 160950919257,
"tx_bytes-r": 1907,
"tx_dropped": 0,
"tx_errors": 0,
"tx_multicast": 8813991,
"tx_packets": 125070289,
"up": true
}, {
"aggregated_by": false,
"autoneg": true,
"bytes-r": 10396,
"dot1x_mode": "auto",
"dot1x_status": "authorized",
"enable": true,
"flowctrl_rx": false,
"flowctrl_tx": false,
"full_duplex": true,
"is_uplink": false,
"jumbo": false,
"lldp_table": [],
"masked": false,
"media": "GE",
"name": "Port 3",
"op_mode": "switch",
"poe_caps": 0,
"port_idx": 3,
"port_poe": false,
"portconf_id": "575797d9429272985a1db175",
"rx_broadcast": 77,
"rx_bytes": 3384400206,
"rx_bytes-r": 8063,
"rx_dropped": 0,
"rx_errors": 0,
"rx_multicast": 4150,
"rx_packets": 6039069,
"speed": 100,
"stp_pathcost": 0,
"stp_state": "forwarding",
"tx_broadcast": 7130309,
"tx_bytes": 3249279910,
"tx_bytes-r": 2332,
"tx_dropped": 0,
"tx_errors": 0,
"tx_multicast": 8954291,
"tx_packets": 19408520,
"up": true
}, {
"aggregated_by": false,
"autoneg": true,
"bytes-r": 0,
"dot1x_mode": "n/a",
"dot1x_status": "n/a",
"enable": true,
"flowctrl_rx": false,
"flowctrl_tx": false,
"full_duplex": false,
"is_uplink": false,
"jumbo": false,
"lldp_table": [],
"masked": false,
"media": "GE",
"name": "Port 4",
"op_mode": "switch",
"poe_caps": 0,
"port_idx": 4,
"port_poe": false,
"portconf_id": "575797d9429272985a1db175",
"rx_broadcast": 0,
"rx_bytes": 0,
"rx_bytes-r": 0,
"rx_dropped": 0,
"rx_errors": 0,
"rx_multicast": 0,
"rx_packets": 0,
"speed": 0,
"stp_pathcost": 0,
"stp_state": "disabled",
"tx_broadcast": 0,
"tx_bytes": 0,
"tx_bytes-r": 0,
"tx_dropped": 0,
"tx_errors": 0,
"tx_multicast": 0,
"tx_packets": 0,
"up": false
}, {
"aggregated_by": false,
"autoneg": true,
"bytes-r": 0,
"dot1x_mode": "n/a",
"dot1x_status": "n/a",
"enable": true,
"flowctrl_rx": false,
"flowctrl_tx": false,
"full_duplex": false,
"is_uplink": false,
"jumbo": false,
"lldp_table": [],
"masked": false,
"media": "GE",
"name": "Port 5",
"op_mode": "switch",
"poe_caps": 0,
"port_idx": 5,
"port_poe": false,
"portconf_id": "575797d9429272985a1db175",
"rx_broadcast": 0,
"rx_bytes": 0,
"rx_bytes-r": 0,
"rx_dropped": 0,
"rx_errors": 0,
"rx_multicast": 0,
"rx_packets": 0,
"speed": 0,
"stp_pathcost": 0,
"stp_state": "disabled",
"tx_broadcast": 0,
"tx_bytes": 0,
"tx_bytes-r": 0,
"tx_dropped": 0,
"tx_errors": 0,
"tx_multicast": 0,
"tx_packets": 0,
"up": false
}, {
"aggregated_by": false,
"autoneg": true,
"bytes-r": 0,
"dot1x_mode": "n/a",
"dot1x_status": "n/a",
"enable": true,
"flowctrl_rx": false,
"flowctrl_tx": false,
"full_duplex": false,
"is_uplink": false,
"jumbo": false,
"lldp_table": [],
"masked": false,
"media": "GE",
"name": "Port 6",
"op_mode": "switch",
"poe_caps": 0,
"port_idx": 6,
"port_poe": false,
"portconf_id": "59d18fe9b6081ed3f75d3355",
"rx_broadcast": 0,
"rx_bytes": 0,
"rx_bytes-r": 0,
"rx_dropped": 0,
"rx_errors": 0,
"rx_multicast": 0,
"rx_packets": 0,
"speed": 0,
"stp_pathcost": 0,
"stp_state": "disabled",
"tx_broadcast": 0,
"tx_bytes": 0,
"tx_bytes-r": 0,
"tx_dropped": 0,
"tx_errors": 0,
"tx_multicast": 0,
"tx_packets": 0,
"up": false
}, {
"aggregated_by": false,
"autoneg": true,
"bytes-r": 0,
"dot1x_mode": "n/a",
"dot1x_status": "n/a",
"enable": true,
"flowctrl_rx": false,
"flowctrl_tx": false,
"full_duplex": false,
"is_uplink": false,
"jumbo": false,
"lldp_table": [],
"masked": false,
"media": "GE",
"name": "Port 7",
"op_mode": "switch",
"poe_caps": 0,
"port_idx": 7,
"port_poe": false,
"portconf_id": "575797d9429272985a1db175",
"rx_broadcast": 0,
"rx_bytes": 0,
"rx_bytes-r": 0,
"rx_dropped": 0,
"rx_errors": 0,
"rx_multicast": 0,
"rx_packets": 0,
"speed": 0,
"stp_pathcost": 0,
"stp_state": "disabled",
"tx_broadcast": 0,
"tx_bytes": 0,
"tx_bytes-r": 0,
"tx_dropped": 0,
"tx_errors": 0,
"tx_multicast": 0,
"tx_packets": 0,
"up": false
}, {
"aggregated_by": false,
"autoneg": true,
"bytes-r": 2226,
"dot1x_mode": "auto",
"dot1x_status": "authorized",
"enable": true,
"flowctrl_rx": false,
"flowctrl_tx": false,
"full_duplex": true,
"is_uplink": false,
"isolation": false,
"jumbo": false,
"lldp_table": [],
"masked": false,
"media": "GE",
"name": "Port 8",
"op_mode": "switch",
"poe_caps": 8,
"poe_enable": true,
"poe_mode": "passthrough",
"poe_voltage": "48.00",
"port_idx": 8,
"port_poe": true,
"portconf_id": "575797d9429272985a1db175",
"rx_broadcast": 1012063,
"rx_bytes": 655667898453,
"rx_bytes-r": 362,
"rx_dropped": 28656,
"rx_errors": 0,
"rx_multicast": 630304,
"rx_packets": 634872135,
"speed": 1000,
"stormctrl_bcast_enabled": false,
"stormctrl_mcast_enabled": false,
"stormctrl_ucast_enabled": false,
"stp_pathcost": 0,
"stp_state": "forwarding",
"tx_broadcast": 6116174,
"tx_bytes": 239145629938,
"tx_bytes-r": 1864,
"tx_dropped": 0,
"tx_errors": 0,
"tx_multicast": 8341073,
"tx_packets": 495246848,
"up": true
}],
"power_source": "poe",
"power_source_voltage": "48.00",
"rx_bytes": 661390466058,
"serial": "F09FC21E3CD1",
"site_id": "575797d7429272985a1db16c",
"ssh_session_table": [],
"stat": {
"bytes": 3.90939602E8,
"datetime": "2017-11-11T04:10:00Z",
"duration": 4950000.0,
"o": "sw",
"oid": "f0:9f:c2:1e:3c:d1",
"port_1-rx_bytes": 6.9195452E7,
"port_1-rx_dropped": 304.0,
"port_1-rx_packets": 181516.0,
"port_1-tx_bytes": 1.16929998E8,
"port_1-tx_packets": 168689.0,
"port_2-rx_bytes": 3303986.0,
"port_2-rx_dropped": 9.0,
"port_2-rx_packets": 11352.0,
"port_2-tx_bytes": 1.0588899E7,
"port_2-tx_packets": 56442.0,
"port_3-rx_bytes": 8936568.0,
"port_3-rx_packets": 15892.0,
"port_3-tx_bytes": 1.1060388E7,
"port_3-tx_packets": 61268.0,
"port_8-rx_bytes": 1.04055643E8,
"port_8-rx_dropped": 89.0,
"port_8-rx_packets": 140018.0,
"port_8-tx_bytes": 6.6868668E7,
"port_8-tx_packets": 164236.0,
"rx_bytes": 1.85491649E8,
"rx_crypts": 0.0,
"rx_dropped": 402.0,
"rx_errors": 0.0,
"rx_frags": 0.0,
"rx_packets": 348778.0,
"site_id": "575797d7429272985a1db16c",
"sw": "f0:9f:c2:1e:3c:d1",
"time": 1510373400000,
"tx_bytes": 2.05447953E8,
"tx_dropped": 0.0,
"tx_errors": 0.0,
"tx_packets": 450635.0,
"tx_retries": 0.0
},
"state": 1,
"stp_priority": "32768",
"stp_version": "rstp",
"sys_stats": {
"loadavg_1": "1.26",
"loadavg_15": "1.41",
"loadavg_5": "1.31",
"mem_buffer": 0,
"mem_total": 262766592,
"mem_used": 161001472
},
"tx_bytes": 396387817490,
"type": "usw",
"uplink": {
"full_duplex": true,
"ip": "10.0.1.15",
"mac": "f0:9f:c2:1e:3c:d1",
"max_speed": 1000,
"media": "GE",
"name": "eth0",
"netmask": "255.255.255.0",
"num_port": 8,
"port_idx": 1,
"rx_bytes": 396387817490,
"rx_bytes-r": 2372,
"rx_dropped": 92655,
"rx_errors": 0,
"rx_multicast": 0,
"rx_packets": 606001308,
"speed": 1000,
"tx_bytes": 661390466058,
"tx_bytes-r": 9066,
"tx_dropped": 0,
"tx_errors": 0,
"tx_packets": 676585183,
"type": "wire",
"up": true,
"uplink_mac": "80:2a:a8:5d:92:a4"
},
"uplink_depth": 2,
"uptime": 1857874,
"user-num_sta": 6,
"version": "3.9.3.7537",
"x_authkey": "543fcde7cd54091e622a93686d1b3ecb",
"x_fingerprint": "65:06:32:75:3a:af:99:8a:92:14:0e:1d:6d:3f:6b:7b",
"x_has_ssh_hostkey": true,
"x_ssh_hostkey_fingerprint": "65:06:32:75:3a:af:99:8a:92:14:0e:1d:6d:3f:6b:7b"
}],
"meta": {
"rc": "ok"
}
}
答案 0 :(得分：0)
劳伦斯有正确的答案
它是一个数组，你应该做
$json['data'][0]['cfgversion']