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How to edit specific JSON key values using PHP（3个答案）
昨天关门了。
我有一个这样的字符串：

$str = '[{"action": "verify_with_source","created_at": "2023-05-30T01:39:54+05:30","status": "in_progress","type": "license"}] {"address":null,"badge_details":null,"card_serial_no":null,"city":null,"cov_details":[{"category":"NT","cov":"MCWG","issue_date":"2021-03-30"},{"category":"NT","cov":"LMV","issue_date":"2021-03-30"}],"date_of_issue":"2021-03-30","date_of_last_transaction":"2021-03-30","dl_status":"Active","dob":"1996-10-09","face_image":null,"gender":null,"hazardous_valid_till":null,"hill_valid_till":null,"id_number":"DL1234567890","issuing_rto_name":"MY CITY","last_transacted_at":"MY CITY","name":"MY NAME","nt_validity_from":"2021-03-30","nt_validity_to":"2036-10-08","relatives_name":null,"source":"SOURCE","status":"id_found","t_validity_from":null,"t_validity_to":null}'

我想把字符串分成两部分-[{"action": "verify_with_source",..."type": "license"}]和{"category":"NT","cov":"LMV","issue_date":"2021-03-30"}],...,"t_validity_to":null"}。
“我和他分手了。

$raw = str_replace(['[', ']'], '', $raw);

我试过了-

$str = preg_replace('^/} {/', '}{', $raw);

和/或

$str = preg_replace('^/}\s{/', '}{', $raw);

和/或

$str = str_replace('} {', '{}', $raw);

然后我打算用语句将字符串$str拆分为2个字符串的数组-

$arr = explode('}{', $str);

字符串没有被拆分，上面的语句返回数组第一个元素中的整个字符串。
我的剧本有什么问题？