Convert a semicolon separated string to an array of associative arrays then json encode

Question

I am facing some problems while converting a set of semicolon delimited strings to json.

The input string:

si;dialed_no;connect_time;duration;region;call_cost
0;918592877727;2015-08-25 18:51:01;21;India(91);0.029
1;918907777727;2015-08-25 19:04:08;220;India(91);0.232
2;918907777727;2015-08-25 19:09:50;40;India(91);0.058
3;918907777727;2015-08-25 19:10:46;69;India(91);0.087
4;919048232151;2015-08-26 13:30:24;19;India(91);0.029
5;919895842822;2015-08-26 14:23:35;423;India(91);0.435

My code:

function my_wrap($val) {
    return '{"test":"' . $val. '"}';
}

$parts = explode(';', $string);
$parts = array_map('my_wrap', $parts);
$json = '[' . implode(',', $parts) . ']';

echo $json;

And the output is like:

[{"test":"dialed_no"},{"test":"connect_time"},{"test":"duration"},{"test":"region"},{"test":"call_cost 0"},{"test":"918592877727"},{"test":"2015-08-25 18:51:01"},{"test":"21"},{"test":"India(91)"},{"test":"0.029 1"},{"test":"918907777727"},{"test":"2015-08-25 19:04:08"},{"test":"220"},{"test":"India(91)"},{"test":"0.232 2"},{"test":"918907777727"},{"test":"2015-08-25 19:09:50"},{"test":"40"},{"test":"India(91)"},{"test":"0.058 3"},{"test":"918907777727"},{"test":"2015-08-25 19:10:46"},{"test":"69"},{"test":"India(91)"},{"test":"0.087 4"},{"test":"919048232151"},{"test":"2015-08-26 13:30:24"},{"test":"19"},{"test":"India(91)"},{"test":"0.029 5"},{"test":"919895842822"},{"test":"2015-08-26 14:23:35"},{"test":"423"},{"test":"India(91)"},{"test":"0.435 6"},{"test":"8801711788025"},{"test":"2015-08-30 19:29:48"},{"test":"1"},{"test":"Bangladesh(880)"},{"test":"0.029 7"},{"test":"8801711788025"},{"test":"2015-08-30 19:29:57"},{"test":"2"},{"test":"Bangladesh(880)"},{"test":"0.029 8"},{"test":"8801711788025"},{"test":"2015-08-30 19:30:07"},{"test":"2"},{"test":"Bangladesh(880)"},{"test":"0.029 9"},{"test":"8801711788025"},{"test":"2015-08-30 19:30:17"},{"test":"1"},{"test":"Bangladesh(880)"},{"test":"0.029 10"},{"test":"8801711788025"},{"test":"2015-08-30 21:24:31"},{"test":"88"},{"test":"Bangladesh(880)"},{"test":"0.087 11"},{"test":"8801833316038"},{"test":"2015-08-31 12:06:15"},{"test":"5"},{"test":"Bangladesh(880)"},{"test":"0.029 12"}]

What I want is like:

[{si:"0",dialed_no:"91xxx",connect_time:"2015-08-25 18:51:01"}, {si:"1",dialed_no:"9184sd",connect_time:"2015-08-25 18:51:01"}]

and so on...

Note: I am getting the above input string from a API URL and not from a csv file or something.

Answer 1

Can you try this code and see if it works as you want?

//we split the single lines
$lines = explode("\n", $string);

$linesArray = array();

//we split each line in a set of elements
foreach($lines as $line){
   $linesArray[] = explode(";",$line);
}
//we use the first line of data as an array of headers
$headers = $linesArray[0];
//and remove it
unset($linesArray[0]);

$jsonArray = [];

foreach($linesArray as $l=>$ln){
    foreach($ln as $k=>$part){
        //we re-build an array with the right headers
        $jsonArray[$l][$headers[$k]] = $part;
    }
}

print json_encode($jsonArray);