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get和post的数据处理过程
坏人也温柔de陈词滥调
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foreach遍历演示实例

实例

<?php

$folk= '我得家人';
$folk=[0=>'爷爷', 1=>'妈妈',2=>'爸爸'];
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title><?php echo $folk;?></title>
</head>
<body>

<h2 style="..."><?php echo $folk;?></h2>

<ul>
    <li><?php echo$folk[0];?></li>
    <li><?php echo$folk[1];?></li>
    <li><?php echo$folk[2];?></li>
</ul>
<hr>
<ul>
<<?php foreach ($folk as $folk): ?>
    <li><a href=""><?php echo $folk; ?></a></li>
<?php endforeach;?>
</ul>
</body>
</html>

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post请求

实例

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>get</title>
</head>
<body>
<form action="">
    <p>
        <label for="email">邮箱:</label>
        <input type="email" id="email" name="email" value="<?php echo isset($_GET['email']) ? $_GET['email'] : ''; ?>">
    </p>
    <p>
        <label for="password">密码:</label>
        <input type="password" id="password" name="password" value="">

    </p>
    <p>
        <button>登陆</button>
    </p>

</form>


</body>
</html>
<?php
echo '<pre>'.
    print_r($_POST);
?>

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get请求

实例

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>get</title>
</head>
<body>
<form action="">
    <p>
        <label for="email">邮箱:</label>
        <input type="email" id="email" name="email" value="<?php echo isset($_GET['email']) ? $_GET['email'] : ''; ?>">
    </p>
    <p>
        <label for="password">密码:</label>
        <input type="password" id="password" name="password" value="">

    </p>
    <p>
        <button>登陆</button>
    </p>

</form>


</body>
</html>
<?php
echo '<pre>'.
    print_r($_GET);
?>

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三元运算符

实例

echo isset($_GET['email']) ? $_GET['email'] : '';

echo '<pre>';
print_r($_GET);
?>

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Correction status：qualified

Teacher's comments：请求类型, 这是指http的 , get和post是最常用的,其实还有put,delete
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