Ask a JSON parsing related issues

Ask a JSON parsing question
I have several JSON strings

HTML Code

  {"Clusterno": 167145108, "Clustertype": 1, "subid": "0", "Newperson": "Welcome". Dazuo. Nickname. dayou. "Come to the group". Dazuo. Group name. Dayou. Enter. Info:. Enter. Dazuo. Information. Dayou. Enter: Dazuo. Number of retreating groups. Dayou. Enter. Please change your business card: Gang name ┃ position or gang name ┃ position ┃ nickname. Enter. The name does not match. Douhao. Do not rename the person sent to Hawaii ... enter. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Jhao. Enter.\.douhao.\ is a robot. Douhao. Please disregard ignore directly. "," Removeperson ":" "," Expdatetime ":" 2021-10-18 23:50:42 "," userid ":" 1 "," Username ":" admin "," Updatecode ":" 7ecedb4e1037476eaaf5fb5e8340aaee "}

Parsing with Json_decode will appear to be null.

I tested, is newperson this contact too long caused, there is no way to solve this problem

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Backslash Escape, conversion encoding

PHP Code

  
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UTF-8 encoded files do not need to be iconv. Refer to the upstairs.
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Backslash Escape, conversion encoding
    
PHP Code
    

 
    $json = ' {"Clusterno": 167145108, "Clustertype": 1, "subid": "0", "Newperson": "Welcome". Dazuo. Nickname. dayou. "Come to the group." Dazuo. Group name. dayou . ". Enter. Info:. Enter. Dazuo. Information. Dayou. Enter: Dazuo. Number of retreating groups. Dayou. ......
    


   
  
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