how store php array to redis and retrieve in nodejs?

Question

I use redis (predis/predis composer) to save some id in php like this:

$redis = new Client();
$mailJson = $redis->get('mail');
$mail  = json_decode($mailJson);
$no = rand(100,500);
array_push($mail, $no);
$redis->set('mail', json_encode($mail));

and i retrieve this array like this:

var redis = require("redis"),
    client = redis.createClient();
client.on('connect', function() {
    client.get('mail', function(err, mailIds) {
        console.log(mailIds);
    });
});

But mailIds variable is string and not an array like this:

[1,200,500,500,400,100,200,100]

Is way can access mailIds items ?

you need to use "json_decode". it will recreate an array from your JSON-string. JSON is always a string describing an array/object. — wayneOS
– wayneOS, Commented Jun 16, 2017 at 9:28

jeroen · Accepted Answer · 2017-06-16 09:35:28Z

3

You need to parse the json (a string) so that you get an array in javascript / node.js:

client.get('mail', function(err, mailIds) {
    // parse the json
    mailIdsArray = JSON.parse(mailIds);
    console.log(mailIdsArray);
});

answered Jun 16, 2017 at 9:35

jeroen

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