RE: How do I get the first element's key of an array of objects?

"Chris W. Parker" <cparker@xxxxxxxxxxxx> · Fri, 8 Apr 2005 08:53:07 -0700

Mattias Thorslund <mailto:mattias@xxxxxxxxxxx>
    on Thursday, April 07, 2005 5:20 PM said:

>> <?php
>> 
>>    $keys = array_keys($object_array);
>> 
>>    $first_key = $keys[0];
> 
> I wonder if that will work, when the first element has the key 3... ?
> 
> This might work better:
> 
> $keys = array_keys($object_array);
> $first_key = reset($keys);

Read www.php.net/array_keys and you shall have your answer.

>From the php docs:

<?php

  $array = array(0 => 100, "color" => "red");
  print_r(array_keys($array));

?>

Will output.

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

Chris.

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