er shabrina: Membuat form

seperti biasa klik kana pada folder kemudian new dan php file dengan nama "save-form"

---> <?php
session_start();
    if($_POST)
    {
        $nama = $_POST['nama'];
        $email = $_POST['email'];
        $alamat = $_POST['alamat'];
        $kota = $_POST['kota'];
        $kodePos = $_POST['kode_pos'];
        $captcha = $_POST['pin'];
        $hari = $_POST['hari'];
        $bulan = $_POST['bulan'];
        $tahun = $_POST['tahun'];

        $error = array();
        $error_c = array();

        $namaPattern = '/[^a-zA-Z ]/';
        if(empty($nama))
        {
            $error['nama'] = 'Nama tidak boleh kosong';
        }
        elseif(preg_match($namaPattern, $nama)){
            $error['nama']='harus huruf';
        }

        //reguler expression (regex)
        $kposPattern = '/^[0-9]{5}$/';
        $emailPattern = '/^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/';
        if(empty($email))
        {
            $error['email'] = 'Email tidak boleh kosong';
        }
        elseif(!preg_match($emailPattern, $email)){
            $error['email'] = 'Email penulisan salah (shasaelek@gmail.com)';
        }

        if(empty($alamat))
        {
            $error['alamat'] = 'Alamat tidak boleh kosong';
        }

        if(empty($kota))
        {
            $error['kota'] = 'Kota tidak boleh kosong';
        }
        if($hari == 'hari'){
            $error['hari'] = $hari;
        }
        if($bulan == 'bulan'){
            $error['bulan'] = $bulan;
        }
        if($tahun == 'tahun'){
            $error['tahun'] = $tahun;
        }
        if(empty($kodePos))
        {
            $error['kode_pos'] = 'Kode Pos tidak boleh kosong';
        }
        elseif(!is_numeric($kodePos))
        {
            $error['kode_pos'] = 'Kode Pos harus berisi angka';
        }
        elseif(!preg_match($kposPattern, $kodePos)){
            $error['kode_pos']='kode pos harus 5 angka';
        }

        if(empty($captcha))
            {
                $error['pin'] = 'Inputan Harus Diisi';
            }
        else if(md5($captcha) != $_SESSION['image_random_value'])
            {
                $error['pin'] = '<p>Are you human being?</p>';
            }
        else if(md5($captcha) == $_SESSION['image_random_value'])
            {
                $error_c['pin'] = '<p>You are people</p>';
            }

        if(empty($error))
        {
            echo "Successful";
        }
        else
        {
            $_SESSION['error'] = $error;
            $_SESSION['post'] = $_POST;
            header("location: contact-form.php");
        }
    }
?>

then new php file again "contact-form"

-->
<?php
session_start();
if(isset($_SESSION['error']))
    {
        $error = $_SESSION['error'];
        $_POST = $_SESSION['post'];
        unset($_SESSION['error']);
        unset($_SESSION['post']);
    }
?>
<form name="form-name" method="post" action="save-form.php">
    <dl>
      <dt>Nama:</dt>
      <dd>
        
        <input name="nama" id="nama" type="text" value="<?php echo isset($_POST['nama']) ? $_POST['nama'] : '';?>" />
        
        <div style="color:red"><?php echo isset($error['nama']) ? $error['nama'] : '';?></div>
      </dd>
      <dt>Email:</dt>
      <dd>
        <input name="email" id="email" type="text" value="<?php echo isset($_POST['email']) ? $_POST['email'] : '';?>" />
        <div style="color:red"><?php echo isset($error['email']) ? $error['email'] : '';?></div>
      </dd>
      <dt>Alamat:</dt>
      <dd>
        <input name="alamat" id="alamat" type="text" value="<?php echo isset($_POST['alamat']) ? $_POST['alamat'] : '';?>" />
        <div style="color:red"><?php echo isset($error['alamat']) ? $error['alamat'] : '';?></div>
      </dd>
      <dt>Kota:</dt>
      <dd>
        <input name="kota" id="kota" type="text" value="<?php echo isset($_POST['kota']) ? $_POST['kota'] : '';?>" />
        <div style="color:red"><?php echo isset($error['kota']) ? $error['kota'] : '';?></div>
      </dd>
      <dt>Kode POS:</dt>
      <dd>
        <input name="kode_pos" id="kode_pos" type="text" value="<?php echo isset($_POST['kode_pos']) ? $_POST['kode_pos'] : '';?>" />
        <div style="color:red"><?php echo isset($error['kode_pos']) ? $error['kode_pos'] : '';?></div>
      </dd>
      <dt>Tgl Lahir</dt>
      <dd>
<?php
//membuat combo box hari
echo "<select name='hari'>
        <option value=hari>hari</option>";
        $hari = 1;
        $haripilih = isset($_POST['hari']) ? $_POST['hari'] : "hari";
        while($hari <=31)
        {
            echo "<option value=$hari";
            echo $hari == $haripilih ? " selected" : "";
            echo '>' .$hari.'</option>';
            $hari++;
        }
echo "</select>";

//membuat array bulan
$bulan=array("Januari" ,"Februari", " Maret" ,"April", "Mei", "Juni", "Juli", "Agustus", "September", "Oktober", "November", "Desember");
//membuat combo box bulan
echo "<select name='bulan'>
        <option value=bulan>bulan</option>";
        $bulanpilih = isset($_POST['bulan']) ? $_POST['bulan']: "bulan";
        foreach($bulan as $bulan)
        {
            echo "<option value=$bulan";
            echo $bulan == $bulanpilih ? " selected" : "";
            echo ">". $bulan. "</option>";
        }
echo "</select>";
//membuat combo box tahun
echo "<select name='tahun'>
        <option value=tahun>tahun</option>";
        $tahun = 2012;
        $tahunpilih = isset($_POST['tahun']) ? $_POST['tahun'] : "tahun";
        while($tahun >=1990)
        {
            echo "<option value=$tahun";
            echo $tahun == $tahunpilih ? " selected" : "";
            echo '>' .$tahun.'</option>';
            $tahun--;
        }
echo "</select>";
?>
        <div style="color:red">
            <?php echo isset($error['hari']) ? $error['hari'] : '';?>
            <?php echo isset($error['bulan']) ? $error['bulan'] : '';?>
            <?php echo isset($error['tahun']) ? ' ' . $error['tahun'] : '';?>
            <?php echo isset($error['hari']) || isset($error['bulan'])
            || isset($error['tahun']) ? 'belum dipilih':'';?>
        </div>
      </dd>
      <dt></dt>
<dt>
            Inputkan Text Di Samping :
            <img src=captcha.php?date=".date('YmdHis')." alt=security_image />
        </dt>
        <dd>
            <div>
                <input type=text name=pin value="<?php echo isset($_POST['pin']) ? $_POST['pin'] : '';?>" />
            </div>
            <div style=color:red><?php echo isset($error['pin']) ? $error['pin'] : '';?></div>
            <div style=color:red><?php echo isset($error_c['pin']) ? $error_c['pin'] : '';?></div>
        </dd>
      <dd>
        <br><input name="submit" id="submit" type="Submit" value="Submit" />
      </dd>
    </dl>
</form>

new php file again "captcha"-->

<?php

session_start();

$alphaNumeric = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$random = substr(str_shuffle($alphaNumeric), 0, 5);
$image = imagecreatefromjpeg("background.jpg");
$textColor = imagecolorallocate($image, 0, 0, 0); // black
imagestring($image, 5, 5, 8, $random, $textColor);
$_SESSION['image_random_value'] = md5($random);
header("Expires: Mon, 36 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s"). " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no cache");
header('Content-tyor: image/jpeg');
imagejpeg($image);
imagedestroy($image);
?>
        ?>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title></title>
    </head>
    <body>
    </body>
</html>

>> implement-captcha

<?php
          session_start();
            if($_POST['submit']) {

                if (md5($_POST['pin']) == $_SESSION['image_random_value']) {
                    echo '<p>You are people</p>';
                }else{
                    echo '<p>Are you human being?</p>';
                }
            }
        ?>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title></title>
    </head>
    <body>
        <form name="form1" method="post" action="">
            <img src="captcha.php?date=<?php echo date('YmdHis');?>" alt="security image" />
            <div>
                input Text Above: <input type="text" name="pin" />
                <input type="submit" name="submit" value="Submit" />
            </div>
        </form>
    </body>
</html>
?>

pastekan gambar berikut dengan name "background" pada folder php kalian