Getting position in array within a multi dimentional array PHP

Question

I have a multi dimensional array like this ;

 A:    Array ( 
        [0] => Array ( [id] => 1 [name] => name1 ) 
        [1] => Array ( [id] => 2 [name] => name2 ) 
        [2] => Array ( [id] => 3 [name] => name3 ) 
        )

And I have a array like this;

 B:    Array ( 
        [0] => Array ( [id] => 2 [name] => name2 )
        )

How to get the position of $b in $a? I want an output like 0,1,2...

Else if B = name2 can I get the position from A as 0,1,2... ?

Mahfuzul Alam · Accepted Answer · 2016-11-10 04:33:39Z

1

You can use array_search()

array_search — Searches the array for a given value and returns the first corresponding key if successful

<?php

$a= [
        ['id'   =>  1, 'name'   =>  'name1'],
        ['id'   =>  2, 'name'   =>  'name2'],
        ['id'   =>  3, 'name'   =>  'name3'],
       ];

$b= ['id'   =>  2, 'name'   =>  'name2'];

$index = array_search($b, $a);

echo $index;      

?>

Output: 1

Since your needle position is in index 1 of array $a, you will get 1.

edited Nov 10, 2016 at 4:33

answered Nov 10, 2016 at 4:27

Mahfuzul Alam

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