Why don't you just have php render javascript directly (as JSON), then you have it available to jQuery natively.
<script>
var data = {my: 'data', goes: 'here', <? echo render_more_of_my_data(); ?> };
</script>
Edit:
if you don't want to have inline js in your php page, and don't want apache to process js as php, then maybe you can src a php file which contains js.
<script src="my_php_file.php">
and inside that php file have js
var data = <? echo render_my_data(); ?>;
OR
just jQuery to call a php webservice using ajax jQuery.get("php_url.php"), and again in that php script you render some json.
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