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                                     each

   (PHP 3, PHP 4 )
   each --  Return the current key and value pair from an array and
   advance the array cursor

Description

   array each ( array array)

   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
   <?php
   $foo = array("bob", "fred", "jussi", "jouni", "egon", "marliese");
   $bar = each($foo);
   print_r($bar);
   ?>

   $bar now contains the following key/value pairs:
Array
(
    [1] => bob
    [value] => bob
    [0] => 0
    [key] => 0
)

   <?php
   $foo = array("Robert" => "Bob", "Seppo" => "Sepi");
   $bar = each($foo);
   print_r($bar);
   ?>

   $bar now contains the following key/value pairs:
Array
(
    [1] => Bob
    [value] => Bob
    [0] => Robert
    [key] => Robert
)

   each() is typically used in conjunction with list() to traverse an
   array, here's an example:

   Example 2. Traversing an array with each()
   <?php
   $fruit = array('a' => 'apple', 'b' => 'banana', 'c' => 'cranberry');
   reset($fruit);
   while (list($key, $val) = each($fruit)) {
       echo "$key => $val\n";
   }
   ?>

   Outputs:
a => apple
b => banana
c => cranberry

   After each() has executed, the array cursor will be left on the next
   element of the array, or past the last element if it hits the end of
   the array. You have to use reset() if you want to traverse the array
   again using each.

   Caution

   Because assigning an array to another variable resets the original
   arrays pointer, our example above would cause an endless loop had we
   assigned $fruit to another variable inside the loop.

   See also key(), list(), current(), reset(), next(), prev(), and
   foreach.
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