<?php

  function test_Math($count = 140000) {
    $time_start = microtime(true);
    $mathFunctions = array("abs", "acos", "asin", "atan", "bindec", "floor", "exp", "sin", "tan", "pi", "is_finite", "is_nan", "sqrt");
    foreach ($mathFunctions as $key => $function) {
      if (!function_exists($function)) unset($mathFunctions[$key]);
    }
    for ($i=0; $i < $count; $i++) {
      foreach ($mathFunctions as $function) {
        $r = call_user_func_array($function, array($i));
      }
    }
    return number_format(microtime(true) - $time_start, 3);
  }

  $total = 0;
  $functions = get_defined_functions();
  $line = str_pad("-",38,"-");
  foreach ($functions['user'] as $user) {
    if (preg_match('/^test_/', $user)) {
      $total += $result = $user();
            echo $result;
        }
  }

?>