php工作原理&get与post请求 - php第五期线上培训php学习作业与笔记

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实例-get.php

<?php
// 获取通过url发送的变量参数
// 键名=>变量名, 值=>变量值

function _get($str){
    $val = !empty($_GET[$str]) ? $_GET[$str] : null;
    return $val;
}

?>

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>get</title>
</head>
<body>
<form action="" method="get">
    <label for="email">邮箱:</label>
    <input type="email" id="email" name="email" value="<?=_get('email')?:''?>">

    <label for="password">密码:</label>
    <input type="password" id="password" name="password" value="<?=_get('password')?:''?>">

    <button>登录</button>
</form>
</body>
</html>
<?php
// 获取通过请求头发送的变量参数
// 键名=>变量名, 值=>变量值
echo '<pre>';
print_r($_GET);
?>

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实例

<?php
// 获取通过请求头发送的变量参数
// 键名=>变量名, 值=>变量值
function _post($str){
    $val = !empty($_POST[$str]) ? $_POST[$str] : null;
    return $val;
}

?>
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>get</title>
</head>
<body>
<form action="" method="post">
    <label for="email">邮箱:</label>
    <input type="email" id="email" name="email" value="<?=_post('email')?:''?>">

    <label for="password">密码:</label>
    <input type="password" id="password" name="password" value="<?=_post('password')?:''?>">

    <button>登录</button>
</form>
</body>
</html>
<?php

echo '<pre>';
print_r($_POST);
?>

运行实例 »

点击 "运行实例" 按钮查看在线实例

Correction status：Uncorrected

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实例-get.php

实例