学習リファレンス - フォームの作成
2020/4/21 23:51
$_GET と ＄_POST と ＄_REQUEST
https://blog.csdn.net/u013372487/article/details/46009075
-安全 P>G
-データ量の大きさ P>G
-ブックマークの場合 Gの方が便利
2020/4/25 18:31
フォーム：
$_SERVER["PHP_SELF"] //current php page (form action object)
$_SERVER["REQUEST_METHOD"]=="POST" //get form method
empty($_POST["gender"]) //empty function
文字列をチェックする
if(!preg_match("/^[a-zA-Z ]*$/",$name)) //if not name
if(!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/",$mail)) //if not email
if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$site)) //if not website
ref: https://www.runoob.com/php/php-form-url-email.html
2020/4/26 21:32
コード
<!DOCTYPE html>
<head>
<title>PHP FORM SAMPLE</title>
<style>.error {color: #FF0000;}</style>
</head>
<body>
<h1>PHP FORM SAMPLE</h1><br>
<hr/>
<h2>Form</h2>
<span class = "error">*Required contents</span><br>
<?php
$name = $gender = $website = $email = $comment = "";
$nameErr = $genderErr = $websiteErr = $emailErr = "";
if($_SERVER["REQUEST_METHOD"] == "POST"){
if(empty($_POST["Name"])){
$nameErr = "Insert name.";
}
else{
$name = text_input($_POST["Name"]);
if(!preg_match("/^[a-zA-Z ]*$/",$name)){
$nameErr = "Name format required.";
}
}
if(empty($_POST["Email"])){
$emailErr = "Insert E-mail.";
}
else{
$email = text_input($_POST["Email"]);
if(!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/",$email)){
$emailErr = "E-mail format required.";
}
}
if(empty($_POST["Website"])){
$website = "";
}
else{
$website = text_input($_POST["Website"]);
if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$website)){
$websiteErr = "*Website format required.";
}
}
$comment = text_input($_POST["Comment"]);
if(empty($_POST["Gender"])){
$genderErr = "Select gender.";
}
else{
$gender = text_input($_POST["Gender"]);
}
}
function text_input($data){
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
<form action = "<?php echo htmlspecialchars($_SERVER["PHP_SELF"])?>" method = "POST">
Name:<input type = "text" name = "Name"><span class = "error">*<?php echo $nameErr;?></span><br>
E-mail:<input type = "text" name = "Email"><span class = "error">*<?php echo $emailErr;?></span><br>
Website:<input type = "text" name = "Website"><span class = "error"><?php echo $websiteErr;?></span><br>
Comment:<br><textarea name = "Comment" cols = "40" rows = "5"></textarea><br>
Gender:
<input type = "radio" value = "Female" name = "Gender" <?php if(isset($_POST["Gender"]) && $_POST["Gender"] == "Female") {echo "checked";}?>>Female
<input type = "radio" value = "Male" name = "Gender" <?php if(isset($_POST["Gender"]) && $_POST["Gender"] == "Male") {echo "checked";}?>>Male<span class = "error">*<?php echo $genderErr;?></span><br>
<br>
<input type = "submit" value = "Submit"><br>
</form>
<hr />
<h2>Insert info:</h2><br>
Name: <?php echo $name;?><br>
E-mail: <?php echo $email;?><br>
Website: <?php echo $website;?><br>
Comment: <?php echo $comment;?><br>
Gender: <?php echo $gender;?><br>
</body>
</html>
Author And Source
この問題について(学習リファレンス - フォームの作成), 我々は、より多くの情報をここで見つけました https://qiita.com/BohanXIXIXI/items/55cacc203336000a58b7著者帰属：元の著者の情報は、元のURLに含まれています。著作権は原作者に属する。
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