Agni Website Building Academy (Bkjia.Com) PHP Programming Today I will introduce an article about PHP judging whether the Form form is submitted. Before A few days ago, I saw a friend asking this question on the webmaster Q&A forum, and then someone gave an example code. The code is as follows:
以下为引用的内容：
$action=$HTTP_POST_VARS["Button1"];
if($action=="提交") {
//执行表单操作
} else {
//读取默认值
}
?> |
In fact, the above code is a bit complicated and can be simplified to:
The following is the quoted content:
以下为引用的内容：
if(isset($HTTP_POST_VARS["Button1"])) {
//执行表单操作
} else {
//读取默认值
}
?> |
if (isset($HTTP_POST_VARS["Button1"])) { //Perform form operation } else { //Read default value } ?> |
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