PHP array creation, invocation and update to implement code _php skills

Copy Code code as follows:

<?php
$array = Array ("Key1" => "Simon", 2 => "Elaine"); Creation of arrays
echo $array ["Key1"]; Output Simon
Echo $array [2]; Output Elaine
?>

Copy Code code as follows:

<?php
$array = Array ("Key1" => Array (0 => 1, 1 =>, 2 => 100),
"Key2" => Array (0 => 5, 1 =>, 2 => 125));
echo $array ["Key1"][0]; Output 1
echo $array ["Key1"][1]; Output 10
echo $array ["Key1"][2]; Output 100
echo $array ["Key2"][0]; Output 5
echo $array ["Key2"][1]; Output 25
echo $array ["Key2"][2]; Output 125
?>

Copy Code code as follows:

<?php
$array = Array ("Key1" => Array (0 => 1, 1 =>, 2 => 100),//define Array
"Key2" => Array (0 => 5, 1 =>, 2 => 125));
Print_r ($array); Output array
?>

Copy Code code as follows:

<?php
$array = Array ("A", "B", "C"); Defining arrays
Print_r ($array); Output array
?>

Copy Code code as follows:

<?php
$array = Array ("A", "B", "C"); Defining arrays
$array [0] = "Simon"; Modifying an array element
Print_r ($array); Output array
?>