function xhprof_sort_cbk in XHProf 6

Same name and namespace in other branches

1. 7 xhprof.inc \xhprof_sort_cbk()

Callback comparison operator (passed to usort() for sorting array of tuples) that compares array elements based on the sort column specified in $sort_col (global parameter).

@author Kannan

3 string references to 'xhprof_sort_cbk'

xhprof_full_report in ./xhprof.inc

Generates a tabular report for all functions. This is the top-level report.

xhprof_print_pc_array in ./xhprof.inc

xhprof_symbol_report in ./xhprof.inc

Generates a report for a single function/symbol.

File

./xhprof.inc, line 370

Code

function xhprof_sort_cbk($a, $b) {
  global $diff_mode;
  $sort_col = isset($_GET['sort']) ? $_GET['sort'] : 'wt';
  if ($sort_col == "fn") {

    // case insensitive ascending sort for function xhprof_names
    $left = strtoupper($a["fn"]);
    $right = strtoupper($b["fn"]);
    if ($left == $right) {
      return 0;
    }
    return $left < $right ? -1 : 1;
  }
  else {

    // descending sort for all others
    $left = isset($a[$sort_col]) ? $a[$sort_col] : '';
    $right = isset($b[$sort_col]) ? $b[$sort_col] : '';

    // if diff mode, sort by absolute value of regression/improvement
    if ($diff_mode) {
      $left = abs($left);
      $right = abs($right);
    }
    if ($left == $right) {
      return 0;
    }
    return $left > $right ? -1 : 1;
  }
}