Simple way to identify repeated strings in an array? (PHP)

Question

I have an array with values $somearray = array('car','bike','legs,'car'). I'd like to find out which of these values in $somearray are repeated and pick out the index. In this example the answer would be 'car' and the index of the array would be 0 and 3.

I'm wondering if this can be done simply in a few lines, perhaps using some PHP function that I don't know, or do I need to explicitly make comparison in nested loops?

TIA!

(Array) functions you might not know can be looked up here: php.net/manual/en/ref.array.php — Felix Kling
– Felix Kling, Commented Jun 30, 2011 at 0:33

zerkms · Accepted Answer · 2011-06-30 00:32:32Z

3

The solution is pretty simple and I bet you can write it yourself. All you need is just 2 functions: array_count_values() and array_keys() with specified second argument (thanks to @prodigitalson)

answered Jun 30, 2011 at 0:32

zerkms

256k73 gold badges447 silver badges551 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Community · Accepted Answer · 2017-05-23 11:55:53Z

0

There's a good answer on this similar question - How to detect duplicate values in PHP array?

To get the array indexes, I would then filter any array value > 1 and get the indexes

edited May 23, 2017 at 11:55

CommunityBot

11 silver badge

answered Jun 30, 2011 at 0:33

steve

5761 gold badge5 silver badges12 bronze badges

Collectives™ on Stack Overflow

Simple way to identify repeated strings in an array? (PHP)

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related