我可以将javascript放在带有src的脚本标记的括号内吗？ [重复]

Question

This question already has an answer here:

• Using HTML script tags to code while they have a source 2 answers

I use these variables assigned by PHP in my linked javascript file below. Just wondering if its ok to do this:

<script src="js/settings.js">
var chores = <?php if ($chores == 0) echo "false"; else echo "true"; ?>;
var contacts = <?php if ($contacts == 0) echo "false"; else echo "true"; ?>;
var gyms = <?php if ($gyms == 0) echo "false"; else echo "true"; ?>;
var meetings = <?php if ($meetings == 0) echo "false"; else echo "true"; ?>;
var spirituals = <?php if ($spirituals == 0) echo "false"; else echo "true"; ?>;
</script>

Or should I do this:

<script>
    var chores = <?php if ($chores == 0) echo "false"; else echo "true"; ?>;
    var contacts = <?php if ($contacts == 0) echo "false"; else echo "true"; ?>;
    var gyms = <?php if ($gyms == 0) echo "false"; else echo "true"; ?>;
    var meetings = <?php if ($meetings == 0) echo "false"; else echo "true"; ?>;
    var spirituals = <?php if ($spirituals == 0) echo "false"; else echo "true"; ?>;
</script>
<script src="js/settings.js"></script>

Both seem to work fine. I don't know why I'm nervous about the top one.

</div>

Answer 1

If the js file (js/settings.js) uses the variables assigned in the document then you should include the javascript file after the variables have been assigned otherwise you're likely to get 'undefined' error.

If js/settings.js use something like $(document).ready(... in which the variables are used after the document is loaded then either way would be fine.

Ideally, in my opinion you should always include the script files after