Remove one element from array php [duplicate]

Question

Please I'm trying to remove 1670937087 from this array but the output I'm getting is not what I want.

Here is my code

<?php 
include "db_connect.php";
$sql2 = "SELECT * FROM ads WHERE campaign_id=132";
$res2 = mysqli_fetch_assoc(mysqli_query($conn,$sql2));
$done = json_decode($res2["done_by"]); //$done output= {"done":[5415703999,1670937087,6887688688],"skip":[],"left":[]}

$fields = array_flip($done->done);
unset($fields['1670937087']);
$fields = array_flip($fields);

$json = json_encode($fields);
print($json);

?>

My code give me this output

{"0":5415703999,"2":6887688688}

But I want something like this

{"done":[5415703999,6887688688],"skip":[],"left":[]}

CherryDT please I Don't understand anything from that website — JOBIANS TECHIE
– JOBIANS TECHIE, Commented Oct 21, 2022 at 20:22
From $done output which is {"done":[5415703999,1670937087,6887688688],"skip":[],"left":[]} — JOBIANS TECHIE
– JOBIANS TECHIE, Commented Oct 21, 2022 at 20:27
Implementation of the very easy-to-find accepted answer on the dupe target: 3v4l.org/9BeTP — mickmackusa
– mickmackusa ♦, Commented Oct 22, 2022 at 23:52

Barmar · Accepted Answer · 2022-10-21 20:34:17Z

0

You need to store $fields back into $done, and encode that.

There's no need to call array_flip() to convert back to the array, use array_keys().

$done = json_decode($res2["done_by"]); //$done output= {"done":[5415703999,1670937087,6887688688],"skip":[],"left":[]}

$fields = array_flip($done->done);
unset($fields['1670937087']);
$done->done = array_keys($fields);
$json = json_encode($done);
print($json);

edited Oct 21, 2022 at 20:34

answered Oct 21, 2022 at 20:27

Barmar

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4 Comments

JOBIANS TECHIE Over a year ago

Sir your code give me this output {"done":{"0":5415703999,"2":6887688688},"skip":[],"left":[]} but I want something like this {"done":[5415703999,6887688688],"skip":[],"left":[]}

Barmar Over a year ago

When array indexes aren't sequential, json_encode() creates an object instead of array. I've solved the problem by calling array_keys() instead of array_flip().

mickmackusa Over a year ago

The fundamental goal of closing duplicate questions is to help people find the right answer by getting all of those answers in one place.

mickmackusa Over a year ago

I am convinced that 1. You are a more knowledgeable developer than I am and 2. You are a more experienced stack overflow contributor than I am. This is why I am always surprised when you don't close closable pages. I don't dv your posts because that would make no impact at all.

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