多表单下拉表单、验证、PHP
我有完整的密码。混乱，但我正在尝试做的是有一个下拉菜单，从1-10选择。然后，在选择一个后，将弹出另一个表单，这样，如果选择了3个，将显示三行字段（姓名、电子邮件）。包括验证。我第一次“硬编码”的是要吐出多少行字段，但现在我想做的是在下拉菜单中有一个“选择”，以便用户能够选择。。。。似乎有效，但无法处理。有PHP专家的帮助吗？没有数据库，没有客户端，没有智能alec。如果你有时间帮忙，请做多表单下拉表单、验证、PHP,php,forms,validation,nested-forms,Php,Forms,Validation,Nested Forms,我有完整的密码。混乱，但我正在尝试做的是有一个下拉菜单，从1-10选择。然后，在选择一个后，将弹出另一个表单，这样，如果选择了3个，将显示三行字段（姓名、电子邮件）。包括验证。我第一次“硬编码”的是要吐出多少行字段，但现在我想做的是在下拉菜单中有一个“选择”，以便用户能够选择。。。。似乎有效，但无法处理。有PHP专家的帮助吗？没有数据库，没有客户端，没有智能alec。如果你有时间帮忙，请做 <!DOCTYPE html> <html> <head> <t
<!DOCTYPE html>
<html>
<head>
<title>PHP FORM </title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div id="container">
<?php
// Print some introductory text:
echo '<h2>Party Invitation Form</h2>
<p>Please enter list of people with first name, last name and email address to get an invitation by email.</p>';
if (isset($_POST['submit-invite'])) { //DROPDOWN MENU
$row = $_POST['invitee'];
// Check if the form has been submitted:
if (isset($_POST['submit'])) {
$problem = FALSE; // No problems so far.
// Check for each value...
for ($i = 1; $i < count($_POST['email']); $i++) {
if (empty($_POST['firstname'][$i])) {
$problem = TRUE;
echo '<input type="text" name="firstname[]" size="20" />';
}
if (empty($_POST['lastname'][$i])) {
$problem = TRUE;
}
if (empty($_POST['email'][$i]) || (substr_count($_POST['email'][$i], '@') != 1) ) {
$problem = TRUE;
}
}
if (!$problem) { // If there weren't any problems...
// Print a message:
echo '<p><b>Thank you for registering! We will send each one an invitation: <b> </b></p>';
for ($i = 0; $i < count($_POST['email']); $i++) {
$row = $i+1;
echo $row.": ".$_POST['firstname'][$i]." ".$_POST['lastname'][$i].", ".$_POST['email'][$i]." <br/>";
// Send the email:
$body = file_get_contents("Lab12_Obj1_email_template.txt");
$body = str_replace("#firstname#",$_POST['firstname'][$i],$body);
$body = str_replace("#lastname#",$_POST['lastname'][$i],$body);
$body = str_replace("#email#",$_POST['email'][$i],$body);
mail($_POST['email'][$i], 'Party Invitation', $body, 'From: jvicencio@johnvicencio.com');
}
// Clear the posted values:
$_POST = array();
} else { // Forgot a field.
echo '<p id="error">* Required field! Please try again. Thank you.</p>';
}
} // End of handle form IF.
//show form
?>
<form action="" method="post">
<table>
<tr style="font-weight:bold">
<td>First name:</td>
<td>Last name:</td>
<td>Email:</td>
</tr>
<?php for ($i = 1; $i <= $row; $i++) { ?>
<tr>
<td><?php if ($problem == TRUE) { echo '<p id="error">*'; } ?>
<? echo $i.': '; ?><input type="text" name="firstname[]" size="20" value="<?php if (isset($_POST['firstname'][$i])) { print htmlspecialchars($_POST['firstname'][$i]); } ?>" />
</td>
<td><?php if ($problem == TRUE) { echo '<p id="error">*'; } ?>
<input type="text" name="lastname[]" size="20" value="<?php if (isset($_POST['lastname'] [$i])) { print htmlspecialchars($_POST['lastname'][$i]); } ?>" />
</td>
<td><?php if ($problem == TRUE) { echo '<p id="error">*'; } ?><input type="text" name="email[]" size="20" value="<?php if (isset($_POST['email'][$i])) { print htmlspecialchars($_POST['email'][$i]); } ?>" />
</td>
</tr>
<?php } ?>
<tr><td><p><input type="submit" class="button" name="submit" value="Register!" /></td>
</tr>
</table>
</form>
<?php
}
else {
echo '
<form action="" method="post">
<select name="invitee">
<option value="">Select</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
<option value="4">Four</option>
<option value="5">Five</option>
<option value="6">Six</option>
<option value="7">Seven</option>
<option value="8">Eight</option>
<option value="9">Nine</option>
<option value="10">Ten</option>
</select>
<input type="submit" class="button" name="submit-invite" value="Invite">
</form>
';
}
?>
</div>
</body>
</html>
PHP表单
您必须将第二个表单提交代码移到第一个表单提交代码之外。试试这个
<!DOCTYPE html>
<html>
<head>
<title>PHP FORM </title>
<link rel="stylesheet" href="style.css"/>
</head>
<body>
<div id="container">
<?php
// Print some introductory text:
echo '<h2>Party Invitation Form</h2>
<p>Please enter list of people with first name, last name and email address to get an invitation by email.</p>';
if (isset($_POST['submit-invite'])) { //DROPDOWN MENU
$row = $_POST['invitee'];
$problem = false; //always try to initialize variables, you may not run into unexpected warnings and problems.
//show form
?>
<form action="" method="post">
<table>
<tr style="font-weight:bold">
<td>First name:</td>
<td>Last name:</td>
<td>Email:</td>
</tr>
<?php for ($i = 1; $i <= $row; $i++) { ?>
<tr>
<td><?php if ($problem == TRUE) {
echo '<p id="error">*';
} ?>
<? echo $i . ': '; ?><input type="text" name="firstname[]" size="20"
value="<?php if (isset($_POST['firstname'][$i])) {
print htmlspecialchars($_POST['firstname'][$i]);
} ?>"/>
</td>
<td><?php if ($problem == TRUE) {
echo '<p id="error">*';
} ?>
<input type="text" name="lastname[]" size="20"
value="<?php if (isset($_POST['lastname'] [$i])) {
print htmlspecialchars($_POST['lastname'][$i]);
} ?>"/>
</td>
<td><?php if ($problem == TRUE) {
echo '<p id="error">*';
} ?><input type="text" name="email[]" size="20"
value="<?php if (isset($_POST['email'][$i])) {
print htmlspecialchars($_POST['email'][$i]);
} ?>"/>
</td>
</tr>
<?php } ?>
<tr>
<td><p><input type="submit" class="button" name="submit" value="Register!"/></td>
</tr>
</table>
</form>
<?php
} // moved second for submit to here
elseif (isset($_POST['submit'])) { // Check if the form has been submitted:
$problem = FALSE; // No problems so far.
// Check for each value...
for ($i = 1; $i < count($_POST['email']); $i++) {
if (empty($_POST['firstname'][$i])) {
$problem = TRUE;
echo '<input type="text" name="firstname[]" size="20" />';
}
if (empty($_POST['lastname'][$i])) {
$problem = TRUE;
}
if (empty($_POST['email'][$i]) || (substr_count($_POST['email'][$i], '@') != 1)) {
$problem = TRUE;
}
}
if (!$problem) { // If there weren't any problems...
// Print a message:
echo '<p><b>Thank you for registering! We will send each one an invitation: <b> </b></p>';
for ($i = 0; $i < count($_POST['email']); $i++) {
$row = $i + 1;
echo $row . ": " . $_POST['firstname'][$i] . " " . $_POST['lastname'][$i] . ", " . $_POST['email'][$i] . " <br/>";
// Send the email:
$body = file_get_contents("Lab12_Obj1_email_template.txt");
$body = str_replace("#firstname#", $_POST['firstname'][$i], $body);
$body = str_replace("#lastname#", $_POST['lastname'][$i], $body);
$body = str_replace("#email#", $_POST['email'][$i], $body);
mail($_POST['email'][$i], 'Party Invitation', $body, 'From: jvicencio@johnvicencio.com');
}
// Clear the posted values:
$_POST = array();
} else { // Forgot a field.
echo '<p id="error">* Required field! Please try again. Thank you.</p>';
}
} // End of handle form IF.
else {
echo '
<form action="" method="post">
<select name="invitee">
<option value="">Select</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
<option value="4">Four</option>
<option value="5">Five</option>
<option value="6">Six</option>
<option value="7">Seven</option>
<option value="8">Eight</option>
<option value="9">Nine</option>
<option value="10">Ten</option>
</select>
<input type="submit" class="button" name="submit-invite" value="Invite">
</form>
';
}
?>
</div>
</body>
</html>
PHP表单
名字：
姓氏：
电邮：