(PHP 3, PHP 4 )
each --
Return the next key and value pair from an array
Description
Returns the current key and value pair from the array
array and advances the array cursor. This
pair is returned in a four-element array, with the keys
0, 1,
key, and
value. Elements 0 and
key contain the key name of the array
element, and 1 and
value contain the data.
If the internal pointer for the array points past the end of the
array contents, each() returns false.
Example 1. Each() examples
$foo = array ("bob", "fred", "jussi", "jouni", "egon", "marliese");
$bar = each ($foo);
|
$bar now contains the following key/value
pairs:
- 0 => 0
- 1 => 'bob'
- key => 0
- value => 'bob'
$foo = array ("Robert" => "Bob", "Seppo" => "Sepi");
$bar = each ($foo);
|
$bar now contains the following key/value
pairs:
- 0 => 'Robert'
- 1 => 'Bob'
- key => 'Robert'
- value => 'Bob'
|
Each() is typically used in conjunction with
list() to traverse an array; for instance,
$HTTP_POST_VARS:
Example 2.
Traversing $HTTP_POST_VARS with
each()
|