A simple JSON pretty view written in PHP.

jsonview.php

#!/usr/bin/env php
<?php

define('TITLE', PHP_EOL . "Json Pretty print - @felipecwb" . PHP_EOL);

function showHelp() {
    echo TITLE;
    echo "\tUsage:" . PHP_EOL;
    echo "\t- jsonlint [file.json]" . PHP_EOL;
    echo "\t- string.json | jsonlint" . PHP_EOL . PHP_EOL;
    exit(1);
}

array_shift($argv);

if (count($argv) != 0) {
    if (is_file($argv[0])) {
        $jsonString = file_get_contents($argv[0]);
    } else {
        showHelp();
    }
} elseif ($jsonString = stream_get_contents(STDIN)) {
    if (empty($jsonString)) {
        echo TITLE;
        echo "*ERROR: empty data." . PHP_EOL;
        exit(2);
    }
} else {
    showHelp();
}

$data = json_decode($jsonString);

if (! $data) {
    echo TITLE;
    echo "*ERROR: Probably Sintax Error on JSON." . PHP_EOL;
    exit(3);
}

echo PHP_EOL;
echo json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_NUMERIC_CHECK | JSON_BIGINT_AS_STRING);
echo PHP_EOL;

use.sh

echo '{"name":"Felipe Francisco"}' > test.json
./jsonview.php test.json
rm test.json

# really useful to webservice's return
curl http://date.jsontest.com/ | ./jsonview.php