Organising code that includes php and javascript files
Question
I have a website where I am including a php library file and a javascript library file. I have condensed the problem to the following files:
index.php
<?php
include('constants.php');
?>
<html>
<head>
<script type="text/javascript" src="lib.js"></script>
</head>
<body onload="javascript:show_const_1('<?php echo(CONST_TEXT); ?>');
show_const_2();">
Some text here
</body>
</html>
constants.php
<?php
define('CONST_TEXT', 'Hello World');
?>
lib.js
function show_const_1(string)
{
alert(string);
}
function show_const_2()
{
alert('<?php echo(CONST_TEXT); ?>');
}
The result is that when the page loads I get two message boxes. The first says "Hello World" and the second says "<?php echo(CONST_TEXT); ?>". The first javascript method does what I want it to, but I will be using the function in many places across the site and so ideally I don't want to have to pass the constant as a parameter every time.
Is there a good way to rearrange the code to make the second javascript method work?
2 answers
solution1
4 ACCPTED 2009-10-02 09:56:07
The simple answer is rename "lib.js" to "lib.php".
You should also add
header('Content-type: text/javascript');
to the top of the file.
Incidentally, you should us json_encode() to output text to javascript:
alert(<?php echo json_encode(CONST_TEXT); ?>);
And "javascript:" doesn't belong in event attributes (which are kindof outdated anyway):
<body onload="doSomething();">
solution2
2 2009-10-02 09:55:41
alert()的方法主体不是由PHP解释的（它是由Javascript解释的），因此您不能在其中放入PHP标记
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