Match array key with array value PHP

Question

How to match array key with array value. With array_intersect() is to match key array. But how to match key in first array with value in second array.

For example array:

$value_array=array(
'1'=>'text one',
'2'=>'text two',
'3'=>'text three',
'4'=>'text four',
'5'=>'text five',
'6'=>'text six',
'7'=>'text seven',
'8'=>'text eight',
'9'=>'text nine',
'10'=>'text ten'
);

$key_array=array(
'1'=>'1',
'2'=>'2',
'3'=>'4',
'4'=>'5',
'5'=>'7'
);

if use array_intersect(), is use to match key. I want to search key array and get value array. And output will show like this:

Array (
        [1] => text one 
        [2] => text two 
        [3] => text four 
        [4] => text five 
        [5] => text seven 
      )

Its duplicate of this

Rakesh Sojitra
– Rakesh Sojitra

2016-01-27 07:07:40 +00:00
Commented Jan 27, 2016 at 7:07 — Rakesh Sojitra
– Rakesh Sojitra, Commented Jan 27, 2016 at 7:07

Irshad · Accepted Answer · 2016-01-27 07:42:12Z

1

I got the answer, here it is :

print_r(array_intersect_key($value_array, array_flip($value_key)));

and output will show:

    Array ( 
[1] => text one 
[2] => text two 
[4] => text four 
[5] => text five 
[7] => text seven 
)

edited Jan 27, 2016 at 7:42

Irshad

3,1415 gold badges33 silver badges57 bronze badges

answered Jan 27, 2016 at 7:04

Bagus Andrian

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1 Comment

Anand G Over a year ago

Not sure if this is really a good way to do this. array_flip is adding extra load. Instead you can achieve using one single loop.

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