在php获取表单数据有专用的命令,$_POST[]就是这个函数了,下面来看我们一个简单的实例:
<?php echo 'Hello, ' . $_POST['first_name'] . '!';
输出是来自表单的first_name的值,再看一个复杂一点点的实例:
$_POST['name'] = trim($_POST['name']); if (strlen($_POST['name']) == 0) { $errors[] = "Your name is required."; }
好了,下面做一个关于$_POST的完整实例:
class="brush:php;"><?php $user = $_POST['user']; $color = $_POST['color']; $self = $_SERVER['PHP_SELF']; if( ( $user != null ) and ( $color != null ) ) { setcookie( "firstname", $user , time() + 36000 ); setcookie( "fontcolor", $color, time() + 36000 ); header( "Location:getcookie.php" ); exit(); } <html> <head> <title>Set Cookie Data</title> </head> <body> <form action ="<?php echo( $self ); " method = "post"> Please enter your first name: <input type = "text" name = "user"><br><br> Please choose your favorite font color:<br> <input type = "radio" name = "color" value = "#FF0000">Red <input type = "radio" name = "color" value = "#00FF00">Green <input type = "radio" name = "color" value = "#0000FF">Blue <br><br> <input type = "submit" value = "submit"> </form> </body> </html>
总结:上面的实例没做安全处理,只是简单的获取了表单提交的数据,我们可以做一些安全处理,如isset() addslashes 等处理.
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