dongqian6554 2010-11-22 03:11
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使用PHP的HTML表单

I'd like to have a form that executes some php code without having to open a completely new php page. Right now, I'm familiar with "POST" so that I can execute a php file and call the variables from the HTML form using $_POST[variable] but, it takes time to open a new page, and I want to have a form that does the action right then and there.

For example, can someone write html code that creates a text box and a button, and when the user presses go, it displays the text that the user entered right next to the button.

Thanks!

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  • duancao1951 2010-11-22 04:39
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    Here's an HTML and PHP snippet to get you started. It uses jQuery and just writes the value of textarea beneath the submit button using AJAX.

    HTML Snippet [file=so.html]

    <!DOCTYPE html>
<html><head><title>SO Example</title>
<script 
  type="text/javascript" 
  src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.js">
</script>
</head>
<body>

<form id="frm" name="frm">
  <textarea id="txt" name="txt" rows="4" cols="40">
  </textarea><br />
  <input type="submit"><br />
  <span id="result"></span>
</form>

<script type="text/javascript">
$('#frm').submit(function(e){
  e.preventDefault();
  $.ajax({
    url:"/so.php",type:"post",dataType:"html",
    data:$('#frm').serialize(),
    success:function(obj){
      $('#result').text(obj);
    }
  });
});
</script>

</body>
</html>

    PHP Snippet [file=so.php]

    <?php
echo $_POST['txt'];
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