douyalin0847 2013-08-29 01:15
浏览 44

PHP：一旦我在PHP中获得值，我如何更新已打印的html元素

Is it possible to put some sort of placeholder in html that I can then fill with a value once I get it from PHP?

For example if I want to change the title of an html page based on the first result of a Mysql query that happens only later in the page, how can I do it?

<html>
  <head> 
    <title> </title>
</head>

<?php $title = mysql_query() ?>

--> how to update now the <title> element of the page?

It happens to me often that I get things I need to print in html only later in the page rendering from PHP, is there a way (JS?) to do something like this?

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  • dongxuanchao1425 2013-08-29 01:20
    关注

    Restructure your PHP and HTML so that the data you need for your page is extracted and stored before you start rendering the page. Your example becomes:

    <?php
  // extract your `title` data
  $myTitle = "MyTitle";

?>

<html>
  <head> 
    <title><?php echo $myTitle; ?> </title>
  </head>
<body>
<!-- render rest of page... -->
    评论

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