PHP read and write JSON from file

Question

I have the following JSON in a file list txt      bgates    first   Bill   last   Gates     sjobs    first   Steve   last   Jobs       How do I add  bross    first   Bob   last   Ross   to my file using PHP   Here s what I have so far    lt  php   user    bross    first    Bob    last    Ross     file    list txt     json   json decode file get contents  file      json  user    array  first    gt   first   last    gt   last    file put contents  file  json encode  json       gt    Which gives me a Fatal error  Cannot use object of type stdClass as array on this line    json  user    array  first    gt   first   last    gt   last     I m using PHP5 2  Any thoughts  Thanks

User · Answer

You need to make the decode function return an array by passing in the true parameter   json decode file get contents  file  true

User · Answer

Or just use  json as an object    json- gt  user   array  first    gt   first   last    gt   last     This is how it is returned without the second parameter  as an instance of stdClass

User · Answer

If you want to display the JSON data in well defined formate you can modify the code as   file put contents  file  json encode  json TRUE       headers   array  http   gt array  method   gt  GET   header   gt  Content  type application json  r n    agent  r n    hash       context stream context create  headers     str   file get contents  list txt  FILE USE INCLUDE PATH  context     str1 utf8 encode  str     str1 json decode  str1 true      foreach  str1 as  key  gt  value         echo  key is   key  n        echo  values are   t           foreach   value as  k             echo    k   t             code                  echo   lt br gt  lt  br gt            echo   n

User · Answer

This should work for you to get the contents of list txt file   headers   array  http   gt array  method   gt  GET   header   gt  Content  type application json  r n    agent  r n    hash       context stream context create  headers     str   file get contents  list txt  FILE USE INCLUDE PATH  context     str utf8 encode  str     str json decode  str true    print r  str

User · Answer

When you want to create json format it had to be in this format for it to read

User · Answer

The sample for reading and writing JSON in PHP    json   json decode file get contents  file  TRUE     json  user    array  first    gt   first   last    gt   last    file put contents  file  json encode  json

User · Answer

Try using second parameter for json decode function    json   json decode file get contents  file   true

User · Answer

The clue is in the error message - if you look at the documentation for json decode note that it can take a second param  which controls whether it returns an array or an object - it defaults to object   So change your call to   json   json decode file get contents  file   true     And it ll return an associative array and your code should work fine

[php] PHP read and write JSON from file

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