php each returns the current key-value pair in the array and moves the array pointer one step forward. Example

each function returns the current key/value pair in the array and moves the array pointer forward one step

Basic syntax

array each (array &$array)

After executing each(), the array pointer will stay at the next unit in the array or at the last unit when the end of the array is reached. If you want to use each to iterate through the array again, you must use reset().

Parameter introduction:

each() function generates an array consisting of the key name and key value of the element pointed to by the current internal pointer of the array, and The internal pointer moves forward.

Return value:

Returns the key/value pair of the current pointer position in the array array and moves the array pointer forward. Key-value pairs are returned as a four-element array with key names 0, 1, key, and value. Cells 0 and key contain the key names of the array cells, and 1 and value contain the data. If the internal pointer is past the end of the array, each() returns FALSE.

each function example one:

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

Run result;

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

each function instance Two:

each() combined with list() to traverse the array

<?php
$fruit = array(
  &#39;a&#39; => &#39;apple&#39;,
  &#39;b&#39; => &#39;banana&#39;,
  &#39;c&#39; => &#39;cranberry&#39;
);
reset($fruit);
while (list($key, $val) = each($fruit)) {
  echo " $key => $val <br/>";
}
?>

##Run result:

a => apple

b => banana
c => cranberry

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