php json decode a txt file

Question 1

I have the following file:

data.txt

{name:yekky}{name:mussie}{name:jessecasicas}

I am quite new at PHP. Do you know how I can use the decode the above JSON using PHP?

My PHP code

var_dump(json_decode('data.txt', true));// var_dump value null

foreach ($data->name as $result) {
        echo $result.'<br />';
    }

Question 2

json_decode takes a string as an argument. Read in the file with file_get_contents

$json_data = file_get_contents('data.txt');
json_decode($json_data, true);

You do need to adjust your sample string to be valid JSON by adding quotes around strings, commas between objects and placing the objects inside a containing array (or object).

[{"name":"yekky"}, {"name":"mussie"}, {"name":"jessecasicas"}]

Question 3

Try something like this:

//initialize array
$myArray = array();

//set up the nested associative arrays using literal array notation
$firstArray = array("id" => 1, "data" => 45);
$secondArray = array("id" => 3, "data" => 54);

//push items onto main array with bracket notation (this will result in numbered indexes)
$myArray[] = $firstArray;
$myArray[] = $secondArray;

//convert to json
$json = json_encode($myArray);

Question 4

Use json_decode() to decode the JSON data in a PHP array, manipulate the PHP array, then re-encode the data with json_encode().

For example:

$json_data = json_decode(file_get_contents('data.txt'), true);
for ($i = 0, $len = count($json_data); $i < $len; ++$i) {
    $json_data[$i]['num'] = (string) ($i + 1);
}
file_put_contents('data.txt', json_encode($json_data));

Question 5

Given this JSON, you can get the currency of a country as follows:

function getCurrencyFor($arr, $findCountry) {
    foreach($arr as $country) {
        if ($country->name->common == $findCountry) {
            $currency = $country->currency[0];
            break;
        }
    }
    return $currency;
}

$json = file_get_contents("https://raw.githubusercontent.com/mledoze/countries/master/countries.json");
$arr = json_decode($json);
// Call our function to extract the currency for Angola:
$currency = getCurrencyFor($arr, "Angola");

echo "Angola has $currency as currency";

Question 6

you can use it like this, in JSON format when you evaluate false value it will give you blank, and when you evaluate true it will give you 1.

$str = '[{"clientId":"17295c59-4373-655a-1141-994aec1779dc","channel":"/meta/connect","connectionType":"long-polling","ext":{"fm.ack":false,"fm.sessionId":"22b0bdcf-4a35-62fc-3764-db4caeece44b"},"id":"5"}]';

$arr = json_decode($str,true);

if($arr[0]['ext']['fm.ack'])    // suggested by **mario**
{
    echo "true";    
}
else {
    echo "false";   
}

php json decode a txt file

Answers

php,json