从提交按钮调用php函数 [英] calling php function from submit button

问题描述

我想将输入字段地址的值传递给php。所以，当我点击提交按钮，它将存储在PHP中。

I want to pass the value of input field address to php. So that when i click on submit button it will be store in php.

<input type="text" name="address">
<input type="submit" name="go" method="post">
<?php
    if($_POST){
    if(isset($_POST['go'])){
    call();
    }else{
    echo "Error";
    }
    }
    function call(){
    echo "hi";
    print(document.address.value);
    }
?>

然而，当我点击按钮时，它没有任何反应。

However when i click on button it response nothing.

推荐答案

您正在混合使用PHP和JavaScript。如果你想要一个纯粹的PHP解决方案，你可以这样做：

You are mixing PHP and JavaScript. If you want a pure PHP solution you could do something like:

<?php
if(isset($_POST['go'])){
     $address = $_POST['address'];
     echo $address;
}
?>

<form method="POST">
  <input type="text" name="address">
  <input type="submit" name="go" method="post">
</form>

在PHP提交表单后，您可以使用 $ _ POST来访问表单值所以使用 $ _ POST ['address'] 而不是 document.address.value

With PHP once the form is submitted you can access form values with $_POST so use $_POST['address'] instead of document.address.value

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