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PHP each() Function

Complete PHP Array Reference

Definition and Usage

The each() function returns the current element key and value, and moves the internal pointer forward.

This element key an value is returned in an array with four elements. Two elements (1 and Value) for the element value, and two elements (0 and Key) for the element key.

This function returns FALSE if there are no more array elements.

Syntax

each(array)

Tips and Notes

Note: This function returns FALSE on empty elements or elements with no value.

Example 1

<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
print_r (each($people));
?>

The output of the code above will be:

Array ( [1] => Peter [value] => Peter [0] => 0 [key] => 0 )

Example 2

Same example as above, but with a loop to output the whole array:

<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");

reset($people);

while (list($key, $val) = each($people))
  {
  echo "$key => $val<br />";
  }
?>

The output of the code above will be:

0 => Peter
1 => Joe
2 => Glenn
3 => Cleveland

Complete PHP Array Reference

From http://www.w3schools.com (Copyright Refsnes Data)