PHP code inside a Javascript's “document.write()”
Question
I need to write some PHP code inside a Javascript's " document.write() ". This is a dummy example, but in the future Javascript will generate automatically that PHP code.
This is the Hello World I have coded:
MyFile.php
<html>
<body>
<script type="text/javascript">
document.write("<?php echo \"Hello World\"; ?>");
</script>
</body>
</html>
However, nothing is displayed, and in the DOM file I get this:
<html>
<body>
<script type="text/javascript">
<!--?php echo "Hello World"; ?-->
</script>
</body>
</html>
Any help? Thanks
5 answers
solution1
8 2012-08-13 16:57:35
PHP在JavaScript之前先经过评估，因此无需转义引号。
document.write("<?php echo "Hello World"; ?>");
solution2
4 2012-08-13 17:00:44
当javascript运行时，这意味着响应正在显示给浏览器，而不再编译php代码，因此将php代码放入javascript中意味着您希望从服务器获得某种东西，而除了ajax之外，别无其他选择。
solution3
3 2012-08-13 16:57:15
What you ask is not possible. Javascript generates the php code client side, after the server is finished. The server never sees the PHP code.
solution4
3 ACCPTED 2012-08-13 17:03:19
It's impossible. Php need server-side to runs, and javascript runs just on client side. What you can do is prepare one php code to write one file and call this code by javascript.
solution5
1 2012-08-13 17:02:41
如果您需要通过javascript执行一些PHP代码，则需要将PHP放在可以运行它的服务器上（即浏览器客户端不会运行它），然后您需要使用AJAX来运行该脚本并用它的输出做任何您需要做的。
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