again checkbox
een lijstje komt te staan met alle geselecteerde items?
Op een volgende pagina? Data weer ophalen uit $_POST of $_SESSION en weer weergeven.
Wat ben je precies aan het maken? Een soort van samenvattingspagina van het eerder ingevulde als bevestiging voor het verzenden ofzo?
Bij elke gebruiker zet je dan een checkbox neer:
Code (php)
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<input type="checkbox" name="gebruikers[]" value="Klaasje">Klaas
Vervolgens als je het formulier verstuurt, dan heb je in $_POST['gebruikers'] een array met alle geselecteerde leden die je dan kan opslaan in je database bij 'winnaars' o.i.d.
Maar winnaars moet je eigenlijk op willekeurige wijze trekken ;-)
Ik krijg een error:
Error reading database: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '0, 0, 0, 0, 1)' at line 6
http://www.mupload.nl/img/mr8mg8lmk2s.png
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<?php session_start();
function quote_smart($value) {
if (get_magic_quotes_gpc()) {
$value = stripslashes($value);
}
if(version_compare(phpversion(),"4.3.0") == "-1") {
return mysql_escape_string($value);
} else {
return mysql_real_escape_string($value);
}
}
if(isset($_POST['submit'])){
// code for check server side validation
if(empty($_SESSION['captcha_code'] ) || strcasecmp($_SESSION['captcha_code'], $_POST['captcha_code']) != 0){
$msg="<span style='color:red'>The Validation code does not match!</span>";// Captcha verification is incorrect.
}else{// Captcha verification is Correct. Final Code Execute here!
$msg="<span style='color:green'>The Validation code has been matched.</span>";
$servername = "";
$username = "";
$password = "";
$dbname = "";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$collection= array('orange', 'apple', 'grapefruit', 'banana', 'watermelon');
$fruit = array('orange', 'apple', 'grapefruit', 'banana', 'watermelon');
if(isset($_POST['submit']))
{ $fruit = $_POST['fruit'];
$values = array($collection);
foreach($collection as $selection )
{ if(in_array($selection, $fruit))
{ $values[ $selection ] = 1; }
else
{ $values[ $selection ] = 0; }
}
$sql = "INSERT INTO guessing (student_name, student_email, student_city, orange, apple, grapefruit, banana, watermelon)
VALUES(
'".$conn->real_escape_string($_POST["student_name"])."',
'".$conn->real_escape_string($_POST["student_email"])."',
'".$conn->real_escape_string($_POST["student_city"])."'
{$values['orange']}, {$values['apple']}, {$values['grapefruit']}, {$values['banana']}, {$values['watermelon']})";
if ($conn->query($sql) === TRUE) {
echo "<script type= 'text/javascript'>alert('New record created successfully');</script>";
} else {
echo "<script type= 'text/javascript'>alert('Error: " . $sql . "<br>" . $conn->error."');</script>";
}
// end of foreach.
// MySQL statement.
// MySQL statement to execute the INSERT statement above.
mysqli_query($conn, $sql) or die('<br/>Error reading database: '.mysqli_error($conn));
mysqli_close($conn);
} // End of, if statement from the button check
;
}
}
?>
<html>
<head>
<meta charset="utf-8">
<title>Testwebsite</title>
<script type='text/javascript'>
function refreshCaptcha(){
var img = document.images['captchaimg'];
img.src = img.src.substring(0,img.src.lastIndexOf("?"))+"?rand="+Math.random()*1000;
}
</script>
</head>
<body>
<form action="" method="post" name="form1" id="form1" >
<input type="checkbox" name="fruit[Orange]" value="orange"> Orange
<input type="checkbox" name="fruit[Apple]" value="apple"> Apple
<input type="checkbox" name="fruit[Grapefruit]" value="grapefruit"> Grapefruit
<input type="checkbox" name="fruit[Banana]" value="banana"> Banana
<input type="checkbox" name="fruit[Watermelon]" value="watermelon"> Watermelon
<br>
<label>Student Name :</label>
<input type="text" name="student_name" id="name" required="required" placeholder="Please Enter Name"/><br /><br />
<label>Student Email :</label>
<input type="email" name="student_email" id="email" required="required" placeholder="[email protected]"/><br/><br />
<label>Student City :</label>
<input type="text" name="student_city" id="city" required="required" placeholder="Please Enter Your City"/><br/><br />
<meta charset="utf-8">
<script type='text/javascript'>
function refreshCaptcha(){
var img = document.images['captchaimg'];
img.src = img.src.substring(0,img.src.lastIndexOf("?"))+"?rand="+Math.random()*1000;
}
</script>
<?php if(isset($msg)){?>
<?php echo $msg;?></td>
<?php } ?>
Validation code:
<img src="captcha.php?rand=<?php echo rand();?>" id='captchaimg'><br>
<label for='message'>Enter the code above here :</label>
<br>
<input id="captcha_code" name="captcha_code" type="text">
<br>
Can't read the image? click <a href='javascript: refreshCaptcha();'>here</a> to refresh.</td>
<input name="submit" type="submit" value="submit">
</form>
</body>
</html>
function quote_smart($value) {
if (get_magic_quotes_gpc()) {
$value = stripslashes($value);
}
if(version_compare(phpversion(),"4.3.0") == "-1") {
return mysql_escape_string($value);
} else {
return mysql_real_escape_string($value);
}
}
if(isset($_POST['submit'])){
// code for check server side validation
if(empty($_SESSION['captcha_code'] ) || strcasecmp($_SESSION['captcha_code'], $_POST['captcha_code']) != 0){
$msg="<span style='color:red'>The Validation code does not match!</span>";// Captcha verification is incorrect.
}else{// Captcha verification is Correct. Final Code Execute here!
$msg="<span style='color:green'>The Validation code has been matched.</span>";
$servername = "";
$username = "";
$password = "";
$dbname = "";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$collection= array('orange', 'apple', 'grapefruit', 'banana', 'watermelon');
$fruit = array('orange', 'apple', 'grapefruit', 'banana', 'watermelon');
if(isset($_POST['submit']))
{ $fruit = $_POST['fruit'];
$values = array($collection);
foreach($collection as $selection )
{ if(in_array($selection, $fruit))
{ $values[ $selection ] = 1; }
else
{ $values[ $selection ] = 0; }
}
$sql = "INSERT INTO guessing (student_name, student_email, student_city, orange, apple, grapefruit, banana, watermelon)
VALUES(
'".$conn->real_escape_string($_POST["student_name"])."',
'".$conn->real_escape_string($_POST["student_email"])."',
'".$conn->real_escape_string($_POST["student_city"])."'
{$values['orange']}, {$values['apple']}, {$values['grapefruit']}, {$values['banana']}, {$values['watermelon']})";
if ($conn->query($sql) === TRUE) {
echo "<script type= 'text/javascript'>alert('New record created successfully');</script>";
} else {
echo "<script type= 'text/javascript'>alert('Error: " . $sql . "<br>" . $conn->error."');</script>";
}
// end of foreach.
// MySQL statement.
// MySQL statement to execute the INSERT statement above.
mysqli_query($conn, $sql) or die('<br/>Error reading database: '.mysqli_error($conn));
mysqli_close($conn);
} // End of, if statement from the button check
;
}
}
?>
<html>
<head>
<meta charset="utf-8">
<title>Testwebsite</title>
<script type='text/javascript'>
function refreshCaptcha(){
var img = document.images['captchaimg'];
img.src = img.src.substring(0,img.src.lastIndexOf("?"))+"?rand="+Math.random()*1000;
}
</script>
</head>
<body>
<form action="" method="post" name="form1" id="form1" >
<input type="checkbox" name="fruit[Orange]" value="orange"> Orange
<input type="checkbox" name="fruit[Apple]" value="apple"> Apple
<input type="checkbox" name="fruit[Grapefruit]" value="grapefruit"> Grapefruit
<input type="checkbox" name="fruit[Banana]" value="banana"> Banana
<input type="checkbox" name="fruit[Watermelon]" value="watermelon"> Watermelon
<br>
<label>Student Name :</label>
<input type="text" name="student_name" id="name" required="required" placeholder="Please Enter Name"/><br /><br />
<label>Student Email :</label>
<input type="email" name="student_email" id="email" required="required" placeholder="[email protected]"/><br/><br />
<label>Student City :</label>
<input type="text" name="student_city" id="city" required="required" placeholder="Please Enter Your City"/><br/><br />
<meta charset="utf-8">
<script type='text/javascript'>
function refreshCaptcha(){
var img = document.images['captchaimg'];
img.src = img.src.substring(0,img.src.lastIndexOf("?"))+"?rand="+Math.random()*1000;
}
</script>
<?php if(isset($msg)){?>
<?php echo $msg;?></td>
<?php } ?>
Validation code:
<img src="captcha.php?rand=<?php echo rand();?>" id='captchaimg'><br>
<label for='message'>Enter the code above here :</label>
<br>
<input id="captcha_code" name="captcha_code" type="text">
<br>
Can't read the image? click <a href='javascript: refreshCaptcha();'>here</a> to refresh.</td>
<input name="submit" type="submit" value="submit">
</form>
</body>
</html>
Gewijzigd op 29/11/2015 13:35:20 door Marcel Groot
Het is ook raadzaam om je manier van enters ook door te zetten. Nu staan er drie enter, waarna je op regel 46 alles op een andere wijze achter elkaar zet.
Wees consistent met je code. Gebruik dus ook bij voorkeur of MySQLi als procedureel (functies als mysqli_*() etc.. )of als OO (Object Georienteerd met -> ).
mysql_*()-functies zijn echt dingen waarvan je af moet stappen!