以json内容格式返回文件

Question

I have a txt file with this structure:

17/02/2016 9:50 [info] "hello"
17/02/2016 10:20 [debug] "world"

now I'm trying to read it with:

$fh = fopen($this->_logPath, "r");
$content = array(); 

while ($line = fgets($fh))
{
    array_push($content, $line);
}
fclose($fh);

return json_encode($content);

the file is readed correctly but, in my chrome extension for try Rest API I get in the json tab:

unexpected string

how I can return each line in json content? For example a result like this:

"trace": {
     info: {
         date: {
             "17/02/2016 9:50" {
                -"content": "hello"
            }     
         }
       } 
     debug: {
          date: { 
             "17/02/2016 10:20" {
               -"content": "world"
              }  
          }
       }
    }

or if someone have a better organization I'll glad to see.

Answer 1

I would choose a structure like this:

{  
   "trace":[  
      {  
         "date":"17/02/2016 9:50",
         "level":"debug",
         "message":"hello"
      },
      { 
         "date":"17/02/2016 9:50",
         "level":"debug",
         "message":"hello"
      }
   ]
}

Notice that trace contains an array of logitems. To parse your file, following should work:

$fh = fopen($this->_logPath, "r");
$content = array(); 
$content["trace"] = array();

while ($line = fgets($fh))
{
    $raw = preg_split("/[\[\]]/", $line); //splits string at [ and ], results in an array with three items
    $entry = array();
    $entry["date"] = trim($raw[0]);
    $entry["level"] = trim($raw[1]);
    $entry["message"] = trim($raw[2]);
    $content["trace"][] = $entry;
}
fclose($fh);
return json_encode($content);

for experimenting with json you may enjoy https://jsonformatter.curiousconcept.com/ which I've always found very useful.