PHP验证-表单未验证
我是一个Java爱好者，开始学习PHP。这是我关于PHP的第一个问题 玩表格。我没能成功。表单只是没有进行验证和静默提交。我可能犯了什么错 错误消息没有打印出来PHP验证-表单未验证,php,forms,form-submit,Php,Forms,Form Submit,我是一个Java爱好者，开始学习PHP。这是我关于PHP的第一个问题 玩表格。我没能成功。表单只是没有进行验证和静默提交。我可能犯了什么错 错误消息没有打印出来 <html> <head> <title></title> <link href="css/program-07.css" rel="stylesheet" type="text/css"/> <div id
<html>
<head>
<title></title>
<link href="css/program-07.css" rel="stylesheet" type="text/css"/>
<div id="requirements" style="margin: 0 auto; text-align:justify; width:850px;">
<h1></h1>
</head>
<body>
<nav class="sidenav">
<header class="w3-container">
<h3>Navigation</h3>
</header>
<a href="http://lineofcode.com/itse2302-002/itse2302-002-007/">Home</a>
<a href="index.php">Program07</a>
<a target="_blank" href="selfprocessor.php">Self Processor</a>
<a target="_blank" href="validatecontrols.php">Validate Controls</a>
</nav>
<div id="main" style="margin-left:25%">
<?php
echo "<h2>Requirement 01 - Datalists + Navigation</h2>";
echo "<h3>To the left are navigation links to the files in this program, and below (not visible) datalists of the days of the week and months of the year that will be used in requirement 2."; ?>
<datalist id="daysweek">
<option value="Monday">
<option value="Tuesday">
<option value="Wednesday">
<option value="Thursday">
<option value="Friday">
<option value="Saturday">
<option value="Sunday">
</datalist>
<datalist id="monthsyear">
<option value="January">
<option value="February">
<option value="March">
<option value="April">
<option value="May">
<option value="June">
<option value="July">
<option value="August">
<option value="September">
<option value="October">
<option value="November">
<option value="December">
</datalist>
<?php
echo "<hr>";
echo "<h2>Requirement 02 - Datalists</h2>";
echo "<h3>The two datalists from above are now incorporated into a form that the user can see and interact with.</h3>";
echo "Input a day of the week and a month of the year.";
?>
<form action="daymonth.php" method="get">
<input list="daysweek" name="days">
<datalist id="day">
<option value="Monday">
<option value="Tuesday">
<option value="Wednesday">
<option value="Thursday">
<option value="Friday">
<option value="Saturday">
<option value="Sunday">
</datalist>
<input list="monthsyear" name="months">
<datalist id="month">
<option value="January">
<option value="February">
<option value="March">
<option value="April">
<option value="May">
<option value="June">
<option value="July">
<option value="August">
<option value="September">
<option value="October">
<option value="November">
<option value="December">
</datalist>
<input type="submit">
</form>
<?php
echo "<hr>";
echo "<h2>Requirement 03 - Form Processor</h2>";
echo "<h3>A form processor file named daymonth was created for the form data in requirement 2. A function called test_input checks the data for safety.</h3>";
echo "<hr>";
echo "<h2>Requirement 04 - Favorites Form</h2>";
echo "<h3>This form includes required fields.</h3>";
$nameErr = $movieErr = $foodErr = $seasonErr = "";
$name = $movie = $food = $season = $comment = "";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (empty($_POST["name"])) {
$nameErr = "Please tell us your name!";
} else {
$name = test_input($_POST["name"]);
}
if (empty($_POST["movie"])) {
$movieErr = "Please tell us your favorite movie!";
} else {
$email = test_input($_POST["movie"]);
}
if (empty($_POST["food"])) {
$foodErr = "Please tell us your favorite food!";
} else {
$website = test_input($_POST["food"]);
}
if (empty($_POST["season"])) {
$seasonErr = "Please tell us your favorite season!";
} else {
$gender = test_input($_POST["season"]);
}
if (empty($_POST["comment"])) {
$comment = "";
} else {
$comment = test_input($_POST["comment"]);
}
}
?>
<p><span class="error">* required field.</span></p>
<form method="post" action="favorites.php">
Name: <input type="text" name="name">
<span class="error">* <?php echo $nameErr;?></span>
<br><br>
Favorite Movie: <input type="text" name="movie">
<span class="error">* <?php echo $movieErr;?></span>
<br><br>
Favorite Food: <input type="text" name="food">
<span class="error">* <?php echo $foodErr;?></span>
<br><br>
Favorite Season:
<input type="radio" name="season" value="Spring">Spring
<input type="radio" name="season" value="Summer">Summer
<input type="radio" name="season" value="Fall">Fall
<input type="radio" name="season" value="Winter">Winter
<span class="error">* <?php echo $seasonErr;?></span>
<br><br>
Comments:<br />
<textarea name="comment" rows="5" cols="40"></textarea>
<br><br>
<input type="submit" name="submit" value="Submit">
</form>
<?php
echo "<hr>";
echo "<h2>Requirement 05 - </h2>";
echo "<h3></h3>";
echo "<hr>";
echo "<h2>Requirement 06 - </h2>";
echo "<h3></h3>";
echo "<hr>";
echo "<h2>Requirement 07 - </h2>";
echo "<h3></h3>";
echo "<hr>";
echo "<h2>Requirement 08 - </h2>";
echo "<h3></h3>";
echo "<hr>";
echo "<h2>Requirement 09 - </h2>";
echo "<h3></h3>";
echo "<hr>";
?>
</div>
</div>
</body>
</html>
航行
*必填字段
姓名：
*
最喜欢的电影：
*
喜爱的食物：
*
最喜欢的季节：
春天
夏天
落下
冬天
*
评论：
<head>
<title>Program 07 - Nicola Stewart</title>
<link href="css/program-07.css" rel="stylesheet" type="text/css"/>
<div id="daymonth" style="margin: 0 auto; text-align:justify; width:850px;">
</head>
<body>
<nav class="sidenav" style="width:25%">
<header class="w3-container">
<h3>Navigation</h3>
</header>
<a href="http://lineofcode.com/itse2302-002/itse2302-002-007/">Home</a>
<a href="index.php">Program07</a>
</nav>
<div id="main" style="margin-left:25%">
<h2>Requirement 04 - Favorites Form</h2>
<header class="container">
<h1>Welcome!</h1>
</header>
<div class="container">
<?php
$name = $movie = $food = $season = $comment = "";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$name = test_input($_POST["name"]);
$movie = test_input($_POST["movie"]);
$food = test_input($_POST["food"]);
$season = test_input($_POST["season"]);
$comment = test_input($_POST["comment"]);
}
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
echo "<h2>You selected:</h2>";
echo "<h3>";
echo "<br>";
echo $name;
echo "<br>";
echo $movie;
echo "<br>";
echo $food;
echo "<br>";
echo $season;
echo "<br>";
echo $comment;
echo "</h3>";
?>
</div>
</div>
</body>
节目07-尼古拉·斯图尔特
航行
要求04-收藏夹表格
欢迎
收藏夹.php<form method="post" action="favorites.php"> ... </form>
$season = test_input("season");
这是
favorites.php注意：未定义的索引：C:\wamp\www\program-07\favorites.php第65行“name=“seasure”$\u POSTIf（isset（$\u POST['seasure']test\u input（）include 'form.php'
function test_input($index) {
if (isset($_POST[$index])) { // make sure that the index exists in $_POST
$data = $_POST[$index];
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
return null; // or any default value
}
$season = test_input("season");
$season = filter_input(INPUT_POST, 'season', FILTER_SANITIZE_SPECIAL_CHARS);