php - Use function in another JavaScript file? -

i have php file next @ bottom:

<script src="js/functions.js"></script> <script type="text/javascript"> alert(testfunction()); </script>

i have js file called functions.js next function:

function testfunction() { homecoming 'hello world!'; }

why console show referenceerror: testfunction not defined when i've imported right js file , called function?

works fine here: (i know not needed simple)

http://jsfiddle.net/6flny/1/

the thing is... create sure script file correctly linked page.

here brief description of file paths when inserting path in src tag:

./ means current directory

../ means parent of current directory, not root directory

/ root directory

myfile.text in current directory, ./myfile.text

../myfile.text 1 level above , /myfile.text lives in root directory.

so you:

<script src="js/functions.js"></script>

would mean functions.js in js folder in current directory

javascript php jquery

Three