Unset(remove) array key in php - php

Question

Following is my $newArr0 which is an array of objects.
Array
(
[0] => stdClass Object
(
[created_at] => Mon Dec 08 03:04:47 +0000 2014
[text] => How a individual man can adopt a village in andhra real guds needed hats off to you MASTER BLASTER #Sachin
[source] => Twitter Web Client
)
[1] => stdClass Object
(
[created_at] => Sun Dec 07 17:23:25 +0000 2014
[text] => #two #cool #peoples ..#Coolfieee ..#me nd #Sachin http://t.co/JU971nWAPo
[source] => Instagram
[2] => stdClass Object
(
[created_at] => Sun Dec 07 15:18:22 +0000 2014
[text] => Snga hit 90 odi international fifty...can he hit 6 more to break sachin s fifty record ..#sachin 96 odi fifty ...
kya lgta h tod dega record
[source] => Twitter Web Client
)
[3] => stdClass Object
[created_at] => Sun Dec 07 14:50:53 +0000 2014
[text] => #jeeturaaj Jeeturaaj want #sachin chi book pahje, please give #Sachin #playingitmyway ......:)
[source] => Twitter Web Client
)
[4] => stdClass Object
[created_at] => Sun Dec 07 14:33:49 +0000 2014
[text] => RT #UthMag: Old... http://t.co/b1HMzE3TZI #BCCI #cricket #featured #global #ICC #india #littlemaster #News #ODI #retire #sachin #sports #te…
[source] => Twitter for Android
)
)
I am trying to drop a key with source name from the array, so I tried this code -
foreach ($newArr0 as $nkey1 => $nval1) {
if($nkey1 == "source") {
unset($newArr0["source"]);
}
}
But it is not removing the key, from $newArr0 Let me know what I am doing wrong here.

Answer 1

First off, its a collection of objects inside the array, so you'd use the -> arrow operator on each object inside your loop. Then, alternatively, you could reference each copy of the object inside the foreach and make your unset.
foreach($newArr0 as &$nval1) {
// for each object inside `$newArr0` is in `$nval1`
unset($nval1->source);
// unset $nval1's source
}

Answer 2

<?php
$newArr = array();
foreach ($newArr0 as $key => $value) {
unset($value->source);
$newArr[$key] = $value;
}
$newArr0 = $newArr;
Demo

Answer 3

Here:
foreach ($array as $key => & $object) {
if ($object->source === 'source') {
unset($array[$key]);
}
}