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Commit 76f5ad8

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committed
Finalises example
1 parent bbdc363 commit 76f5ad8

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2 files changed

+56
-25
lines changed

2 files changed

+56
-25
lines changed

‎action.php

Lines changed: 25 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -4,7 +4,7 @@
44

55
if ( ! is_null($post_action)) {
66
switch ($post_action) {
7-
case 'add_email':
7+
case 'add':
88
$address = isset($_POST['email']) && ! empty($_POST['email']) ? $_POST['email'] : null;
99
if ( ! is_null($address)) {
1010
add_email($address);
@@ -13,7 +13,7 @@
1313
}
1414
break;
1515
default:
16-
show_index();
16+
show_index('unknown action');
1717
break;
1818
}
1919
} else {
@@ -23,23 +23,34 @@
2323

2424
/// functions
2525

26-
function add_email() {
27-
// connect to database (NOTE: configure as needed)
28-
$host = 'localhost';
29-
$db = 'php-db-form';
30-
$user = 'root';
31-
$pass = 'root';
32-
33-
$pdo = new PDO("pgsql:host=$host;port=8889;dbname=$db;user=$user;password=$pass");
26+
function add_email($address) {
27+
require_once 'config.php';
28+
29+
// connect to mysql database
30+
try {
31+
$dns = 'mysql:host=' . HOST . ';dbname=' . DB;
32+
$pdo = new PDO($dns, USER, PASS);
33+
// set the PDO error mode to exception
34+
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
35+
} catch(PDOException $e) {
36+
show_index('mysql connection failed:' . $e->getMessage());
37+
}
3438

39+
// insert into database
40+
$timestamp = time();
3541
$stmt = $pdo->prepare('INSERT INTO emails (address, created_at) VALUES (:address, :created_at)');
36-
// $stmt->bindParam(':address', );
42+
$stmt->bindParam(':address', $address, PDO::PARAM_STR);
43+
$stmt->bindParam(':created_at', $timestamp, PDO::PARAM_INT);
44+
$inserted = $stmt->execute();
3745

38-
// create prepared statement, save to db
39-
40-
show_index();
46+
if ($inserted) {
47+
show_index();
48+
} else {
49+
show_index('something went wrong, please try again!');
50+
}
4151
}
4252

53+
4354
function show_index($msg = null) {
4455
if ( is_null($msg)) {
4556
header('Location: index.php');

‎index.php

Lines changed: 31 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -1,10 +1,23 @@
11
<?php
22

3-
// connect to database
3+
require_once 'config.php';
4+
5+
// connect to mysql database
6+
try {
7+
$dns = 'mysql:host=' . HOST . ';dbname=' . DB;
8+
$pdo = new PDO($dns, USER, PASS);
9+
// set the PDO error mode to exception
10+
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
11+
} catch(PDOException $e) {
12+
echo '<p style="color:red">mysql connection failed:' . $e->getMessage() . '</p>';
13+
echo '<p>try to refresh</p>';
14+
}
415

516
// select data from database
17+
$stmt = $pdo->prepare('SELECT * from emails ORDER BY created_at DESC');
18+
$stmt->execute();
619

7-
$data = ['some@email.com', 'office@email.org'];
20+
$emails = $stmt->fetchAll(PDO::FETCH_ASSOC);
821

922
$error = isset($_GET['error']) && ! empty($_GET['error']) ? $_GET['error'] : null;
1023

@@ -16,17 +29,22 @@
1629
<title>Database Form</title>
1730

1831
<style>
19-
.DBForm {
32+
.DBForm,
33+
.Fields {
2034
border: 2px solid #222;
2135
border-radius: 2px;
36+
}
37+
38+
.DBForm {
2239
padding: 1rem;
2340
}
2441
.DBForm .input {
2542
width: 222px;
2643
}
27-
.DBForm .error {
44+
45+
.Error {
2846
color: tomato;
29-
padding-top: 0.4rem;
47+
margin-top: 0.6rem;
3048
}
3149

3250
.Fields .field {
@@ -50,20 +68,22 @@ class="input"
5068
/>
5169
<input
5270
type="submit"
53-
name="add_email"
71+
name="action"
5472
value="add"
5573
/>
56-
<div class="error">
57-
<?php echo $error; ?>
58-
</div>
5974
</form>
6075

76+
<div class="Error">
77+
<?php echo 'error: ' . $error; ?>
78+
</div>
79+
6180
<h2>Email addresses</h2>
6281
<div class="Fields">
6382
<?php
64-
foreach ($data as $key => $email) {
83+
foreach ($emails as $key => $email) {
6584
?><div class="field"><?php
66-
echo $key . ' – ' . $email;
85+
$created_date = date('d.m.Y', $email['created_at']);
86+
echo $created_date . ' – ' . $email['address'];
6787
?></div><?php
6888
}
6989
?>

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