如何让php验证在表单上工作？
我需要在将表单发送到会话数组之前对其进行验证，这就是我目前所拥有的 使用如何让php验证在表单上工作？,php,html,forms,validation,session,Php,Html,Forms,Validation,Session,我需要在将表单发送到会话数组之前对其进行验证，这就是我目前所拥有的 使用PHP\u SELF将表单发送到需要验证输入正确有效的索引 提交表单前会回显错误，每次提交时输入错误，其他消息不会回显。页面刷新 任何帮助都将是惊人的，我已经禁用了javascript验证来测试这一点，并且是半功能性的 PHP代码： <?php // define variables and set to empty values $nameErr = $emailErr = $mobileErr =
PHP\u SELF<?php
// define variables and set to empty values
$nameErr = $emailErr = $mobileErr = $creditCardErr = $expiryErr = "";
$name = $email = $mobile = $creditCard = $expiry = "";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
function validate($str) {
return trim(htmlspecialchars($str));
}
//Valikdating User name
if (empty($_POST["cust[name]"])) {
$nameErr = "Name is required";
} else {
$name = validate($_POST["cust[name]"]);
if (!preg_match("/\b([A-Z]{1}[a-z]{1,30}[- ]{0,1}|[A-Z]{1}[- \']{1}[A-Z]{0,1}
[a-z]{1,30}[- ]{0,1}|[a-z]{1,2}[ -\']{1}[A-Z]{1}[a-z]{1,30}){2,5}/",$name)) {
$nameErr = "Only Western names, letters and white spaces allowed";
}
}
if (empty($_POST["cust[email]"])) {
$emailErr = "Email is required";
} else {
$email = validate($_POST["cust[email]"]);
// check if e-mail address is well-formed
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$emailErr = "Invalid email format";
}
}
if (empty($_POST["cust[mobile]"])) {
$mobileErr = "Mobile Number is required";
} else {
$mobile = validate($_POST["cust[mobile]"]);
//check if mobile phone is inputted correctly
if (!preg_match("/^(\(04\)|04|\+614)( ?\d){8}$/",$mobile)) {
$mobilelErr = "Invalid Mobile Number";
}
}
if (empty($_POST["cust[card]"])) {
$creditCardErr = "Credit Card is required";
} else {
$creditCard = validate($_POST["cust[card]"]);
//check if all credit card types are valid
if (!preg_match("/^(\d){16}$/",$creditCard)) {
}else if(!preg_match("/^(\d){4}\s{1}(\d){4}\s{1}(\d){4}\s{1}(\d){4}$/",$creditCard)) {
}else if(!preg_match("/^(\d){4}\-{1}(\d){4}\-{1}(\d){4}\-{1}(\d){4}$/",$creditCard)) {
$creditCardErr = "Invalid Credit Card";
}
}
//This needs to be fixed
if (empty($_POST["cust[expiry]"])) {
$expiryErr = "Expiry is required";
} else {
$expiry = validate($_POST["cust[expiry]"]);
//check if expiry is valid and a month ahead
if (!preg_match("",$expiry)) {
$expiryErr = "Invalid date, select month onwards";
}
}
}
<div id="bookingsCard">
<form id="seatform" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="post">
<!-- Customer Details -->
<div class="CustomerDetails">
<label for="CustomerDetails"><b>CUSTOMER DETAILS</b></label>
<br><br>
<label for="Name"><b>Name</b></label>
<input type="text" name="cust[name]" id="cust-name" value="<?php echo $name; ?>">
<span class="error">* <?php echo $nameErr;?></span>
<br><br>
<label for="Email"><b>Email</b></label>
<input type="email" name="cust[email]" id='cust-email' value="<?php echo $email; ?>">
<span class="error">* <?php echo $emailErr;?></span>
<br><br>
<label for="Mobile"><b>Mobile</b></label>
<input type="tel" name="cust[mobile]" id='cust-mobile' value="<?php echo $mobile; ?>">
<span class="error">* <?php echo $mobileErr;?></span>
<br><br>
<label for="Credit Card"><b>Credit Card</b></label>
<input type="text" name="cust[card]" id='cust-card' value="<?php echo $creditCard; ?>">
<span class="error">* <?php echo $creditCardErr;?></span>
<br><br>
<label for="Expiry"><b>Expiry</b></label>
<input type="month" name="cust[expiry]" id='cust-expiry'
pattern="[0-9]{4}-[0-9]{2}" value="<?php echo $expiry; ?>">
<span class="error">* <?php echo $expiryErr;?></span>
<br><br>
</div>
<hr>
<label><b>Total Amount</b></label>
<input name="total" id="total" type="text" readonly>
<br><br>
<button type="submit" class="bookbtn" name="order" value='order' id='bookbtn' >Book Now!</button>
</form>
</div>
HTML表单代码：
<?php
// define variables and set to empty values
$nameErr = $emailErr = $mobileErr = $creditCardErr = $expiryErr = "";
$name = $email = $mobile = $creditCard = $expiry = "";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
function validate($str) {
return trim(htmlspecialchars($str));
}
//Valikdating User name
if (empty($_POST["cust[name]"])) {
$nameErr = "Name is required";
} else {
$name = validate($_POST["cust[name]"]);
if (!preg_match("/\b([A-Z]{1}[a-z]{1,30}[- ]{0,1}|[A-Z]{1}[- \']{1}[A-Z]{0,1}
[a-z]{1,30}[- ]{0,1}|[a-z]{1,2}[ -\']{1}[A-Z]{1}[a-z]{1,30}){2,5}/",$name)) {
$nameErr = "Only Western names, letters and white spaces allowed";
}
}
if (empty($_POST["cust[email]"])) {
$emailErr = "Email is required";
} else {
$email = validate($_POST["cust[email]"]);
// check if e-mail address is well-formed
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$emailErr = "Invalid email format";
}
}
if (empty($_POST["cust[mobile]"])) {
$mobileErr = "Mobile Number is required";
} else {
$mobile = validate($_POST["cust[mobile]"]);
//check if mobile phone is inputted correctly
if (!preg_match("/^(\(04\)|04|\+614)( ?\d){8}$/",$mobile)) {
$mobilelErr = "Invalid Mobile Number";
}
}
if (empty($_POST["cust[card]"])) {
$creditCardErr = "Credit Card is required";
} else {
$creditCard = validate($_POST["cust[card]"]);
//check if all credit card types are valid
if (!preg_match("/^(\d){16}$/",$creditCard)) {
}else if(!preg_match("/^(\d){4}\s{1}(\d){4}\s{1}(\d){4}\s{1}(\d){4}$/",$creditCard)) {
}else if(!preg_match("/^(\d){4}\-{1}(\d){4}\-{1}(\d){4}\-{1}(\d){4}$/",$creditCard)) {
$creditCardErr = "Invalid Credit Card";
}
}
//This needs to be fixed
if (empty($_POST["cust[expiry]"])) {
$expiryErr = "Expiry is required";
} else {
$expiry = validate($_POST["cust[expiry]"]);
//check if expiry is valid and a month ahead
if (!preg_match("",$expiry)) {
$expiryErr = "Invalid date, select month onwards";
}
}
}
<div id="bookingsCard">
<form id="seatform" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="post">
<!-- Customer Details -->
<div class="CustomerDetails">
<label for="CustomerDetails"><b>CUSTOMER DETAILS</b></label>
<br><br>
<label for="Name"><b>Name</b></label>
<input type="text" name="cust[name]" id="cust-name" value="<?php echo $name; ?>">
<span class="error">* <?php echo $nameErr;?></span>
<br><br>
<label for="Email"><b>Email</b></label>
<input type="email" name="cust[email]" id='cust-email' value="<?php echo $email; ?>">
<span class="error">* <?php echo $emailErr;?></span>
<br><br>
<label for="Mobile"><b>Mobile</b></label>
<input type="tel" name="cust[mobile]" id='cust-mobile' value="<?php echo $mobile; ?>">
<span class="error">* <?php echo $mobileErr;?></span>
<br><br>
<label for="Credit Card"><b>Credit Card</b></label>
<input type="text" name="cust[card]" id='cust-card' value="<?php echo $creditCard; ?>">
<span class="error">* <?php echo $creditCardErr;?></span>
<br><br>
<label for="Expiry"><b>Expiry</b></label>
<input type="month" name="cust[expiry]" id='cust-expiry'
pattern="[0-9]{4}-[0-9]{2}" value="<?php echo $expiry; ?>">
<span class="error">* <?php echo $expiryErr;?></span>
<br><br>
</div>
<hr>
<label><b>Total Amount</b></label>
<input name="total" id="total" type="text" readonly>
<br><br>
<button type="submit" class="bookbtn" name="order" value='order' id='bookbtn' >Book Now!</button>
</form>
</div>
可移动的
到期
$\u POST[“cust[XXX]”无效。如果必须使用2d数组来验证数据，则应改用$_POST['cust']['XXX']。下面的代码工作正常
if (empty($_POST["cust"]['name'])) {
$nameErr = "Name is required";
}
else {
$name = validate($_POST["cust"]['name']);
.............
}
使用表单发布的数据已序列化到名为$\u post的数组中。要在数组中获取数组，需要使用上面的语法。
如果您没有上述表单的多个实例，那么在表单输入中使用单个维度数组就可以了
<form action="" method="POST">
<input type="text" name="name"></input>
......
</form>
......
然后您可以获得如下所示的post数据：
<?php
if(empty($_POST['name'])){
$nameErr = 'Please input your name';
}else{
//Do something to process the value submitted
}
?>
您可以这样做：
对于html：我需要检查所有验证是否都在会话中，然后重定向到收据页面。我已经做了验证。现在，如果所有输入都存在，我需要在会话中写入checl并发送到receive.php任务要求名称为cust[name]等