change array value in php through array place

Question

How to change or update array value in PHP through array number?

Example:

$array1 = array("cat","dog","mouse","dog");

I want to change the value of dog in the 2nd array only

@NikkoDelaCruz In php json is object not an array. Or probabely it is an associative array not a list like one. — AmirHossein, Oct 01 '17 at 06:19
This is not a "ask all questions on one page"-website. SO is meant as a knowledge bank. Replacing your question like this means this thread has no value in the future and should because of that be removed. — Andreas, Oct 01 '17 at 07:00
New questions go into a new post. I've rolled back your change, please do not do that again. — Martijn Pieters, Oct 01 '17 at 08:11

Harsh Gundecha · Answer 1 · 2017-10-01T06:40:12.810

0

Edit :-

To delete element use unset(arrayVar[key])

For eg :- unset($array1[1]) - will delete the "mouse" at key/index 1 if you wish to delete 2nd occurance then use unset($array1[3])

Original :-

Explain your problem in more detail please !

What do you mean by 2nd array and where exactly is it ?

Do you mean to edit the 2nd occurance of "dog" in array ? If so then it would be $array1[3]="someNewValue"

edited Oct 01 '17 at 06:40

answered Oct 01 '17 at 06:15

Harsh Gundecha

This has a possible solution, but is not really an answer. It's better to use comments to ask clarifying questions. – DSway Oct 01 '17 at 06:21
@DSway he can't comment. – Andreas Oct 01 '17 at 06:26
why $array1[3], isn't $array[1]?, the first dog in array – Nikko Dela Cruz Oct 01 '17 at 06:27

score 0 · Answer 2 · answered Oct 01 '17 at 06:17

0

$a = 'array' . '1';
$$a[1] = 'doggg'; #value changed
$b = 'array' . '2';
$$b[1] = 'newDogg'; #value changed

answered Oct 01 '17 at 06:17

AmirHossein

score 0 · Answer 3 · answered Oct 01 '17 at 06:31

0

if you want to remove 2 index then

$array1 = array('dog','mouse','cat','mouse');
 unset($array1[1]);
 print_r($array1);

Output

Array ( [0] => dog [2] => cat [3] => mouse )

//if you are looking for remvoing duplicate value then you can use array_unique

$result=array_unique($array1);

print_r($result);

Output

Array ( [0] => dog [1] => mouse [2] => cat )

answered Oct 01 '17 at 06:31

Vision Coderz

isn't? Array ( [0] => dog [1] => cat [2] => mouse ). because the first mouse is already deleted? – Nikko Dela Cruz Oct 01 '17 at 06:35

score 0 · Answer 4 · answered Oct 01 '17 at 06:34

0

If you mean you have to remove an element from an array, probably this will help.

array_splice( $array1, OFFSET, 1 );

replace OFFSET with the index you want to remove.

answered Oct 01 '17 at 06:34

HariV

i want to delete it, not to replace it – Nikko Dela Cruz Oct 01 '17 at 06:39
array_splice will remove items, and also it will rearrange the array. I am sorry if this is not your requirement. – HariV Oct 01 '17 at 07:01

4 Answers4