Passing a PHP array via Javascript to another PHP script

Question

I may be going about this the hard way, as I modeled my code after an older article: populating triple dropdown list but I have found I don't need to query the database, because all the information is already neatly stored for me in a PHP array used earlier in the script.

I have a PHP array already created ($events):

<?php foreach($events as $event) {

Now I have to pass the events array to another file for processing:

<select name="search_month" onChange="getMonth('filter-leaderboard.php?month='+this.value)">

I'm just not sure how to pass it via Javascript.

How do I go about doing that?

Thanks!

Serialize the php array and pass ot to your javascript function, then deserialize it again when needed — user3077828
– user3077828, Commented Feb 7, 2014 at 2:09
What is in $events? What is your foreach doing? Your onchange event should send the selected value of your select to filter-leaderboard.php as $_GET['month'] but I can't tell much more than that from this question. — Okonomiyaki3000
– Okonomiyaki3000, Commented Feb 7, 2014 at 2:10
@Okonomiyaki3000 - $events is an already set and functioning array. The foreach is going through each event and running some statements. This is already existing code that is working fine. I was just showing that to say that I do have an existing and functioning array that I could pass and manipulate in my secondary PHP script. I need the month and the extra data in the $events array to create my new options. — Yazmin
– Yazmin, Commented Feb 7, 2014 at 23:58

Community · Accepted Answer · 2023-11-14 22:25:35Z

1

Looking at your question, it appears you're trying to get the month using AJAX?

If so, it'd probably be better to post the array as the body rather than doing a get request.

You can use the json_encode function (https://www.php.net/json_encode) to convert the array into a JSON object so you can work with it in JavaScript.

edited Nov 14, 2023 at 22:25

CommunityBot

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answered Feb 7, 2014 at 2:10

NRaf

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Using json_encode was my solution and I was still able to do a get request. However, what do you mean by "post the array as the body"? I'd rather do that if it means better code. Thanks!

Yazmin
– Yazmin

02/08/2014 14:14:52
Commented Feb 8, 2014 at 14:14

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