How to find elements which is exists in multiple array in php? [duplicate]

Question

I have to find the elements which exist in multiple arrays,

For example, I have 4 arrays

Array1 = {P1,P2,P3,P4}
Array2 = {P1,P2,P3}
Array3 = {P1}
Array4 = {P2,P3}

I have to find elements which exist in all the arrays i.e for the above example the elements im expecting is {P1,P2} or {P1,P3}

How can i do this using PHP array functions?

Please help.

This seems to be what you're looking for: php.net/manual/en/function.array-intersect.php — Quasdunk
– Quasdunk, Commented Nov 23, 2011 at 15:07
I thought array_intersect will give only element(s) which are present in all the arrays! Isn't it? — srinath
– srinath, Commented Nov 23, 2011 at 15:16

Shakti Singh · Accepted Answer · 2011-11-23 15:06:55Z

2

use the array_intersect function of php

answered Nov 23, 2011 at 15:06

Shakti Singh

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3 Comments

srinath Over a year ago

I thought array_intersect will give only element(s) which are present in all the arrays! Isn't it?

Shakti Singh Over a year ago

@srinath: I have to find the common elements in multiple arrays. I have to find elements which exist in all the arrays. So what do you really wants? If this is not your question then what is your question?

srinath Over a year ago

Edited my question, "I have to find elements which exist in all the arrays" is THE question. I think the example should make it clear..

Mike Almond · Accepted Answer · 2011-11-23 15:07:11Z

0

There is a built in PHP function that will do what you're asking for called array_intersect

http://www.php.net/manual/en/function.array-intersect.php

answered Nov 23, 2011 at 15:07

Mike Almond

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1 Comment

srinath Over a year ago

I thought array_intersect will give only element(s) which are present in all the arrays! Isn't it?

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