CODEWITHSUNDEEP
phpweb
craphunter
craphunter

Reputation: 830

Set index of an array as a variable

Sorry, but it might be a very simple answer.

I do have an array: 

Array ( [0] => 3 [1] => 0 )

If I do this:

foreach($array as $key){
    $index = $key;
    print_r($index);
}

Of course I get:

3

0

I want to have a variable with the index:

0

1

How do I do it? It should be very simple. I am disparing! Thanks for help!

Upvotes: 0

Views: 2817

Answers (3)

MrWhite
MrWhite

Reputation: 45829

There are two versions of the foreach() statement, the following returns the array keys and values.

foreach($array as $key => $value){
    echo $key.' => '.$value;  // Outputs 0 => 3, 1 => 0
}

$key is the array key (or index) ie. 0 and 1. $value is the value for the corresponding array $key ie. 3 and 0.

The other format of the foreach() statement is what you have in your question and returns just the array values (although you call this $key in your code), so...

foreach($array as $value){
    echo $value;  // Outputs 3, 0
}

Upvotes: 0

DaveRandom
DaveRandom

Reputation: 88677

foreach ($array as $key => $val) {
  print $key;
}

...or use array_keys()

Upvotes: 0

Marc B
Marc B

Reputation: 360732

foreach ($array as $key => $value) {
  ...
}

or

foreach(array_keys($array) as $key) {
   $value = $array[$key];
}

Upvotes: 1

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