php remove object from array of objects

Question

I'm trying to remove an object from an array of objects by its' index. Here's what I've got so far, but i'm stumped.

$index = 2;

$objectarray = array(
0=>array('label'=>'foo', 'value'=>'n23'),
1=>array('label'=>'bar', 'value'=>'2n13'),
2=>array('label'=>'foobar', 'value'=>'n2314'),
3=>array('label'=>'barfoo', 'value'=>'03n23')
);

//I've tried the following but it removes the entire array.
foreach ($objectarray as $key => $object) {
 if ($key == $index) {
   array_splice($object, $key, 1);
   //unset($object[$key]); also removes entire array.
 }
}

Any help would be appreciated.

Updated Solution

 array_splice($objectarray, $index, 1); //array_splice accepts 3 parameters 
    //(array, start, length) removes the given array and then normalizes the index
    //OR 
    unset($objectarray[$index]); //removes the array at given index
    $reindex = array_values($objectarray); //normalize index
    $objectarray = $reindex; //update variable

What are you trying to remove exactly?

FabioG
– FabioG

2014-02-04 17:56:32 +00:00
Commented Feb 4, 2014 at 17:56 — FabioG
– FabioG, Commented Feb 4, 2014 at 17:56
2=>array('label'=>'foobar', 'value'=>'n2314'

toddsby
– toddsby

2014-02-04 17:57:34 +00:00
Commented Feb 4, 2014 at 17:57 — toddsby
– toddsby, Commented Feb 4, 2014 at 17:57

toddsby · Accepted Answer · 2014-02-04 21:51:28Z

13

    array_splice($objectarray, $index, 1); 
    //array_splice accepts 3 parameters (array, start, length) and removes the given 
    //array and then normalizes the index
    //OR 
    unset($objectarray[$index]); //removes the array at given index
    $reindex = array_values($objectarray); //normalize index
    $objectarray = $reindex; //update variable

answered Feb 4, 2014 at 21:51

toddsby

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Comments

paskl · Accepted Answer · 2014-02-04 17:58:10Z

2

You have to use the function unset on your array.

So its like that:

<?php

$index = 2;

$objectarray = array(
    0 => array('label' => 'foo', 'value' => 'n23'),
    1 => array('label' => 'bar', 'value' => '2n13'),
    2 => array('label' => 'foobar', 'value' => 'n2314'),
    3 => array('label' => 'barfoo', 'value' => '03n23')
);
var_dump($objectarray);
foreach ($objectarray as $key => $object) {
    if ($key == $index) {
        unset($objectarray[$index]);
    }
}

var_dump($objectarray);
?>

Remember, your array will have odd indexes after that and you must (if you want) reindex it.

$foo2 = array_values($objectarray);

answered Feb 4, 2014 at 17:58

paskl

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1 Comment

Coisox Over a year ago

"your array will have odd indexes...". You solved my problem. Thx

FabioG · Accepted Answer · 2014-02-04 18:00:23Z

2

in that case you won't need that foreach just unset directly

unset($objectarray[$index]);

answered Feb 4, 2014 at 18:00

FabioG

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2 Comments

FabioG Over a year ago

@toddsby it must be something else then... i've just tested this and it works perfectly. are you making any unsets afterwards or before?

toddsby Over a year ago

You were correct, I had a malformed if statement previous to this code that was causing $objectarray = '';. Your solution works, but I think array_splice is going to be more efficient for my use case. I've updated my question.

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