如何使用php格式化此json数据

Question

the link is here .please look at this bellow details and tell me how to get the value of each {} block

JSON DATA

 {
        "id": "1",
        "0": "1",
        "value": "Addalachchenai",
        "1": "Addalachchenai",
        "department_id": "6",
        "2": "6",
        "ordering": "1",
        "3": "1"
    }

    {
        "id": "2",
        "0": "2",
        "value": "Akkaraipattu ",
        "1": "Akkaraipattu ",
        "department_id": "6",
        "2": "6",
        "ordering": "2",
        "3": "2"
    }

    {
        "id": "3",
        "0": "3",
        "value": "Ampara ",
        "1": "Ampara ",
        "department_id": "6",
        "2": "6",
        "ordering": "3",
        "3": "3"
    }

PHP

<?php

try {
    $dbh = new PDO('mysql:host=localhost;dbname=$db', $user, $pass);
    foreach($dbh->query('SELECT * FROM `jos_jea_towns` LIMIT 0, 500 ') as $row) {
       echo '<pre>' . json_encode($row, JSON_PRETTY_PRINT).'</pre>';

    }
    $dbh = null;
} catch (PDOException $e) {
    print "Error!: " . $e->getMessage() . "<br/>";
    die();
}
?>

I want to get the VALUE of the joson data..

How to format above json data using php

Answer 1

Use

json_decode($jsonObject, true);

this function will convert your json data in to php array. But the code you are writing seems to be very inefficient, you should not run your queries in foreach() variables, you should use like this.

<?php

try {
    $dbh = new PDO('mysql:host=localhost;dbname=$db', $user, $pass);
    $result = $dbh->query('SELECT * FROM `jos_jea_towns` LIMIT 0, 500 ');
    foreach($result as $row) {
       echo '<pre>';
       print_r($row);
       echo '</pre>';
       //echo '<pre>' . json_encode($row, JSON_PRETTY_PRINT).'</pre>';

    }
    $dbh = null;
} catch (PDOException $e) {
    print "Error!: " . $e->getMessage() . "<br/>";
    die();
}
?>