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Question

Detecting if an Array is Indexed or Associative

Answer 1

A:

If it is for the purpose of iterating through an array, to be safe you can always use foreach.

Extrakun 2009-08-25 05:31:07

I know, but it's not.

Alix Axel 2009-08-25 06:15:17

Answer 2

A:

is_int(key($someArray))

Vincent W 2009-08-25 05:39:36

consider array('foo'=>'bar',27=>'Hello')

Alan Storm 2009-08-25 06:08:17

I know. But because this is all just a concept (indexed or associative), you can also choose to never use mixed arrays (with both integer and string indices). If you would adhere to these principles, the code above would suffice.

Vincent W 2009-08-25 11:15:35

It's slightly more than a concept. Although there's a single Array type in PHP, many of the built in functions will operate differently on an array with a series of sequential integers than they will on a array with a non-sequential series of mixed keys.

Alan Storm 2009-08-25 18:14:28

Answer 3

+4 A:

I think you are looking for - http://stackoverflow.com/questions/173400/php-arrays-a-good-way-to-check-if-an-array-is-associative-or-sequential

adatapost 2009-08-25 05:45:07

+1 Thank you, finally someone has provided me with an answer other lecturing me about what arrays in PHP are and aren't. ~_~

Alix Axel 2009-08-25 06:14:12

Answer 4

A:

There are only associative arrays in PHP.

Bombe 2009-08-25 06:05:42

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