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PHP中经过正则查找字符串

WBOY
WBOYOriginal
2016-06-13 12:35:58816browse

PHP中通过正则查找字符串
源字符串：
{ "remote": "119.6.126.138", "host": "119.6.126.138", "ipstart": "119.6.126.128", "ipend": "119.6.126.191", "geo": "CN.23.328.117", "buss": "buss=0,alv=0,qos=1,host=0,port=443", "level": 16, "usep2p": 1, "flag": "0", "expect": 3, "actual": 3, "needtest": 0, "curtime": 1381719390, "starttime": 0, "endtime": 0, "cliptime": 6, "timeshift": 168.000000, "dir": "", "cdnpath": "", "liveflv": 1, "livehls": 1, "livep2p": 1, "livertmp": 1, "mustm3u8": 0, "livesftime": 60, "livesfmust": 0, "forcegslb": 1200, "nodelist": [ { "gone": 357, "pool": "SC-CD-AIPU", "detail": "manual:357,303,161,848,715,843,857", "playlevel": 1, "slicetime": 480, "leavetime": 120, "location": "http:\/\/61.157.126.235\/32\/12\/22\/letv-uts\/6876563-AVC-253672-AAC-31586-1238720-46099352-822ede6ccebd6463bb310a386587246b-1378954284229.letv?crypt=28aa7f2e111&b=297&nlh=3072&nlt=5&bf=30&gn=357&p2p=1&video_type=flv&opck=1&check=0&tm=1382151600&key=ddd14e644e9182037e967fac097ce3da&proxy=3708493158,2071812434&cips=119.6.126.138&geo=CN-23-328-117&lgn=letv&mmsid=3049516&platid=1&splatid=101&playid=0&tss=no&termid=1&hwtype=un&ostype=Windows 7&pay=0&tag=letv&sign=letv&tn=0.05756930820643902&rateid=350" }, { "gone": 303, "pool": "CQ-AIPU", "detail": "manual:357,303,161,848,715,843,857", "playlevel": 1, "slicetime": 480, "leavetime": 120, "location": "http:\/\/221.11.29.102\/32\/12\/22\/letv-uts\/6876563-AVC-253672-AAC-31586-1238720-46099352-822ede6ccebd6463bb310a386587246b-1378954284229.letv?crypt=65aa7f2e111&b=297&nlh=3072&nlt=5&bf=30&gn=303&p2p=1&video_type=flv&opck=1&check=0&tm=1382151600&key=ddd14e644e9182037e967fac097ce3da&proxy=1033731819,2071812434&cips=119.6.126.138&geo=CN-23-328-117&lgn=letv&mmsid=3049516&platid=1&splatid=101&playid=0&tss=no&termid=1&hwtype=un&ostype=Windows 7&pay=0&tag=letv&sign=letv&tn=0.05756930820643902&rateid=350" }, { "gone": 161, "pool": "HB-WH-AIPU", "detail": "manual:357,303,161,848,715,843,857", "playlevel": 1, "slicetime": 480, "leavetime": 120, "location": "http:\/\/101.36.100.61\/32\/12\/22\/letv-uts\/6876563-AVC-253672-AAC-31586-1238720-46099352-822ede6ccebd6463bb310a386587246b-1378954284229.letv?crypt=72aa7f2e111&b=297&nlh=3072&nlt=5&bf=30&gn=161&p2p=1&video_type=flv&opck=1&check=0&tm=1382151600&key=ddd14e644e9182037e967fac097ce3da&proxy=1033731819,2071812434&cips=119.6.126.138&geo=CN-23-328-117&lgn=letv&mmsid=3049516&platid=1&splatid=101&playid=0&tss=no&termid=1&hwtype=un&ostype=Windows 7&pay=0&tag=letv&sign=letv&tn=0.05756930820643902&rateid=350" } ] }

需求：
红色的字符串出现多次，只选择其第一次的出现。请问，在php中，如何通过正则取到红色字体的内容，谢谢。

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