Array
(
    [foo==>bar] => Array
        (
            [ct] => 5
            [wt] => 16
        )

    [foo==>strlen] => Array
        (
            [ct] => 5
            [wt] => 9
        )

    [bar==>bar@1] => Array
        (
            [ct] => 4
            [wt] => 7
        )

    [bar@1==>bar@2] => Array
        (
            [ct] => 3
            [wt] => 3
        )

    [bar@2==>bar@3] => Array
        (
            [ct] => 2
            [wt] => 1
        )

    [bar@3==>bar@4] => Array
        (
            [ct] => 1
            [wt] => 0
        )

    [main()==>foo] => Array
        (
            [ct] => 1
            [wt] => 2116
        )

    [main()==>xhprof_disable] => Array
        (
            [ct] => 1
            [wt] => 0
        )

    [main()] => Array
        (
            [ct] => 1
            [wt] => 2976
        )

)
<br />
<b>Warning</b>:  fopen(/tmp/xhprof/686f6ced42348.xhprof_foo.xhprof): Failed to open stream: No such file or directory in <b>/var/www/html/xhprof/xhprof_lib/utils/xhprof_runs.php</b> on line <b>135</b><br />
---------------
Assuming you have set up the http based UI for 
XHProf at some address, you can view run at 
http://<xhprof-ui-address>/index.php?run=686f6ced42348&source=xhprof_foo
---------------