课程进度 39% · 第9/22章第9/22章 · 标签 1/2
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表单与请求
PHP通过$_GET、$_POST、$_REQUEST获取请求数据。
php
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<!-- form.html -->
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<form method="POST" action="handler.php">
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<input name="username" />
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<input type="password" name="pwd" />
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<button>提交</button>
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</form>
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// handler.php
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$name = $_POST['username'] ?? '';
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$pwd = $_POST['pwd'] ?? '';
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echo "欢迎, $name";
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— 2 —
Session与Cookie
php
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session_start(); // 启动会话
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$_SESSION['user_id'] = 1; // 设置session
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setcookie("lang", "zh-CN", time()+3600); // 设置cookie
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echo $_COOKIE['lang'] ?? '默认'; // 读取cookie
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// 删除
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session_destroy();
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setcookie("lang", "", time()-3600);
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$_GET$_POSTsessionsetcookieform