<?php
require_once 'includes/functions.php';
$from_value = '';
$from_unit = '';
$to_unit = '';
$to_value = '';
if ($_POST['submit']) {
$from_value = $_POST['from_value'];
$from_unit = $_POST['from_unit'];
$to_unit = $_POST['to_unit'];
$to_value = convert_length($from_value, $from_unit, $to_unit);
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Convert Length</title>
<link href="styles.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="main-content">
<h1>Convert Length</h1>
<form action="" method="post">
<div class="entry">
<label>From:</label>
function convert_speed($value, $from_unit, $to_unit)
{
// Adding some if statements so our explode() works as it is
if ($from_unit == "knots") {
$from_unit = "nautical_miles_per_hour";
}
if ($to_unit == "knots") {
$to_unit = "nautical_miles_per_hour";
}
list($from_dist, $from_time) = array_pad(explode("_per_", $from_unit), 2, null);
// array_pad() is used to remove a "Notice: undefined offset 1"
list($to_dist, $to_time) = array_pad(explode("_per_", $to_unit), 2, null);
// array_pad() is used to remove a "Notice: undefined offset 1"
if ($from_time == "hour") {
$value = $value / 3600;
// 1 hour divided by 3600 seconds (1h = 3600s)
}
$value = convert_length($value, $from_dist, $to_dist);
// Using our already created function
if ($to_time == "hour") {
$value = $value * 3600;
}
return $value;
}
function convert_speed($value, $from_unit, $to_unit)
{
if ($from_unit == 'knots') {
$from_unit = 'nautical_miles_per_hour';
}
if ($to_unit == 'knots') {
$to_unit = 'nautical_miles_per_hour';
}
list($from_dist, $from_time) = explode('_per_', $from_unit);
list($to_dist, $to_time) = explode('_per_', $to_unit);
if ($from_time == 'hour') {
$value /= 3600;
}
$value = convert_length($value, $from_dist, $to_dist);
if ($to_time == 'hour') {
$value *= 3600;
}
return $value;
}
function convert_speed($value, $from_unit, $to_unit)
{
list($from_dist, $from_time) = explode('_per_', $from_unit);
list($to_dist, $to_time) = explode('_per_', $to_unit);
if ($from_time == 'hour') {
$value /= 3600;
}
$value = convert_length($value, $from_dist, $to_dist);
if ($to_time == 'hour') {
$value *= 3600;
}
return $value;
}