将此字符串（PHP数组）转换为JSON编码的字符串的最简单方法是什么？

Question

My error log has sent me an email which includes a big array of data, which was stored in the users session. This array SHOULD have been converted to a JSON encoded string and stored in my database but something has gone wrong. If I have the data as a text string, what is the quickest way to convert back to JSON and save back to my database. Here is an example of SOME of the data from the array. Remember: I have this as a text string an en email, not as an actual array. The content in the email has the <pre> tags surrounding it.

            [customer_firstname] => James
            [customer_lastname] => Smith
            [customer_address1] => 
            [customer_postcode] => AB12CD
            [customer_address2] => 
            [customer_address3] => 
            [customer_address4] => 
            [customer_town] => London
            [customer_county] => 
            [customer_country] => UK

Answer 1

The simplest way I can think of is a simple str_replace on the output, converting it into an array that you can copy-paste into a PHP script and then convert to JSON.

<?php
  $errorInfo = "[customer_firstname] => James
        [customer_lastname] => Smith
        [customer_address1] => 
        [customer_postcode] => AB12CD
        [customer_address2] => 
        [customer_address3] => 
        [customer_address4] => 
        [customer_town] => London
        [customer_county] => 
        [customer_country] => UK";

  echo str_replace(["[", "]", "=> ", "\n"], ["'", "'", "=>\"", "\",\n<br />"],  $errorInfo);
?>

Outputs:

'customer_firstname' =>"James", 
'customer_lastname' =>"Smith", 
'customer_address1' =>"", 
'customer_postcode' =>"AB12CD", 
'customer_address2' =>"", 
'customer_address3' =>"", 
'customer_address4' =>"", 
'customer_town' =>"London", 
'customer_county' =>"", 
'customer_country' =>"UK

Note that the last closing quote is missed... Need to add this yourself or add it after the str_replace

Then add braces and assign:

$error = [
  'customer_firstname' =>"James", 
  'customer_lastname' =>"Smith", 
  'customer_address1' =>"", 
  'customer_postcode' =>"AB12CD", 
  'customer_address2' =>"", 
  'customer_address3' =>"", 
  'customer_address4' =>"", 
  'customer_town' =>"London", 
  'customer_county' =>"", 
  'customer_country' =>"UK"];

Simplez:

echo json_encode($error);