How to Print data in JSON format using PHP

Question

PHP code :

print_r($InformationRetrieval['KeywordExtraction'][1]);

Outputs :

Array
(
    [google] => 15
    [search] => 18
    [or] => 2
    [web] => 4
    [is] => 4
    [a] => 5
    [engine] => 2
}

but needs to print words that are indexes of this array eg: google, search, or, web etc..

How is it done?

You can use array_keys See my answer and demo further details — Hüseyin BABAL
– Hüseyin BABAL, Commented Apr 13, 2014 at 11:21
Your title mentions JSON. Are you looking for json_encode() ? — IMSoP
– IMSoP, Commented Apr 13, 2014 at 11:27

Community · Accepted Answer · 2023-11-17 20:20:58Z

1

You can use array_keys;

print_r(array_keys($InformationRetrieval['KeywordExtraction'][2]));

Here is a working demo: Demo

edited Nov 17, 2023 at 20:20

CommunityBot

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answered Apr 13, 2014 at 11:17

Hüseyin BABAL

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Comments

amarVashishth · Accepted Answer · 2014-04-13 11:42:14Z

0

use this :

<?php
$a = array("google" => 15, "search" => 18, "or" => 2, "web" => 4, "is" => 4, "a" => 5, "engine" => 2);

foreach($a as $key=>$value) {
   echo $key;
}
?>

answered Apr 13, 2014 at 11:42

amarVashishth

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