How to prevent overriding in array? - php

Question

I'm trying to add all the keys of different json available in a file to an array. What I did for the moment is this:
//Get the json file content
$jsonData = file(__DIR__ .'/../logs/error.json');
//Save all the json
$json = [];
//Iterate through the line of the file, each line is a json
foreach($jsonData as $line)
{
//Convert the json in an associative array
$array = json_decode($line, true);
//Iterate through the json keys
foreach($array as $k => $val)
{
$json[$k] = $val;
}
}
the json file is like this:
{"Timestamp":"2018-06-14T10:46:52.3326036+02:00","Level":"Error","MessageTemplate":"System.Exception"}
{"Timestamp":"2018-06-14T10:47:22.7493871+02:00","Level":"Error","MessageTemplate":"System.Exception"}
I'll get this:
{"Timestamp":"2018-06-14T10:47:22.7493871+02:00","Level":"Error","MessageTemplate":"System.Exception"}
because the $json[$k] override I guess the previous array, but $k is a new json so why the index of the array is replaced?
Thanks in advance for any help.

Answer 1

may be this one is your expected output.
//Get the json file content
$jsonData = file(__DIR__ .'/../logs/error.json');
//Save all the json
$json = [];
//Iterate through the line of the file, each line is a json
foreach($jsonData as $line)
{
//Convert the json in an associative array
$array = json_decode($line, true);
$temp = [];
//Iterate through the json keys
foreach($array as $k => $val)
{
$temp[$k] = $val;
}
$json[] = $temp;
}

Answer 2

change this line
foreach($array as $k => $val)
{
$json[$k] = $val;
}
to
foreach($array as $k => $val)
{
$json[][$k] = $val;
}

Answer 3

Well you're overwriting keys with the same names, so there's really nothing surprising in your output.
You probably meant to do this:
foreach($jsonData as $line) {
$tmp = []; //<-- set up a new array just for this iteration
$array = json_decode($line, true);
foreach($array as $k => $val) $tmp[$k] = $val;
$json[] = $tmp; //<-- log the array in the master $json array
}

Answer 4

//Get the json file content
$jsonData = file(__DIR__ .'/../logs/error.json');
//Convert the json in an associative array
$array = json_decode($jsonData, true);
//Save all the json
$json = [];
//Iterate through the line of the file, each line is a json
foreach($array as $k => $val)
{
$json[][$k] = $val;
}