I'm trying to select the maximum value for a particular key in a multidimensional array. I'm having trouble "getting to" the key in question...
so here my post
Code: Select all
<?php
session_start();
if(isset($_POST['fname']))
{
if(isset($_POST['fname']) && isset($_POST['lname']) && isset($_POST['phone']))
{
$_SESSION['formArray'][] = array("fname" => $_POST['fname'],
"lname" => $_POST['lname'],
"phone" => $_POST['phone']);
}
else
{
print "Error: Not enough form data";
}
}
for($i = 0; $i <= count($_SESSION['formArray']); $i++)
{
print $_SESSION['formArray'][$i]['fname'] . " " . $_SESSION['formArray'][$i]['lname'] . " " . $_SESSION['formArray'][$i]['phone'] . "<br />";
}
/* Just echoing out to see weather i can access them*/
for ( $k = 0; $k <= count($_SESSION['formArray']); $k++ )
{
echo "{$_SESSION['formArray'][$k]['phone']}"."<br/>";
}
/*ok i would like to see only the highest number from the phone key, just the highest number*/
$out = array();
foreach($_SESSION['formArray'] as $obj)
{
$out[] = $obj->phone;
}
echo "this would be the highest number" . max($out);
//session_destroy();
?>
So as you can see Its not outputting anything
Code: Select all
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Bretts Array</title>
</head>
<body>
<form name="info" action="" method="post">
first name: <input type="text" name="fname" value=""><br/>
last name:<input type="text" name="lname" /><br />
phone number:<input type="text" name="phone" /><br />
<input type="submit"/>
</form>
</body>
</html>