Storing time in array - php

Question

I have some code that stores values in an array. It all seems to work but I also want to store the time that each value is added to the array (as part of the array) The code stores only unique values to a maximum of four.
function getBand() {
$band_name=$_GET['band_name'];
return $band_name;
}
$pages=$_SESSION['pages'];
if(in_array($_GET['band_name'], $pages)) {
echo"Already in Array";
} else {
if (empty($_SESSION['pages']))
$_SESSION['pages'] = array();
$_SESSION['pages'][] = getBand();
$_SESSION['pages'] = array_slice($_SESSION['pages'], -4);
}

Answer 1

Use time () to get the time.
And store that in the desired array.
array_push ($array, time ());
Since you're talking about "the time they are added to the array" it could be that you mean microseconds which in that case use microtime ()
Note that both functions don't return a formatted timestamp, instead they return an integer.
More on time () here
More on microtime () here

Answer 2

Maybe something like this could do the work:
$test = "Metallica";
$test2 = "The Black Keys";
$arr['pages'][$test] = $test;
$arr['pages'][$test] = date("D M d, Y G:i");
$arr['pages'][$test2] = $test;
$arr['pages'][$test2] = date("D M d, Y G:i");
echo '<pre>'.print_r($arr, true).'</pre>';
For date format you can see - http://php.net/manual/bg/function.date.php
Cheers

Answer 3

class SessionManager
{
protected static $pages = null;
protected static $maxPages = 4;
public function __construct($session) {
self::$pages = $session['pages'];
}
public static function addPage($pageName) {
self::$pages[$pageName] = array(
'name' => $pageName,
'created' => date('Y-m-d h:i:s')
);
self::$pages = array_slice(self::$pages, -1 * $maxPages);
}
public static function writeSession(&$session) {
$session['pages'] = self::$pages;
}
public static function getPages() {
return self::$pages;
}
}
session_start();
$session = new SessionManager($_SESSION);
$session->addPage($_GET['band_name']);
$session->writeSession($_SESSION);
print_pre($session->getPages());