<?php
date_default_timezone_set("UTC");
function simple() {
$a = 0;
for ($i = 0; $i < 1000000; $i++)
$a++;
$thisisanotherlongname = 0;
for ($thisisalongname = 0; $thisisalongname < 1000000; $thisisalongname++)
$thisisanotherlongname++;
}
/****/
function simplecall() {
for ($i = 0; $i < 1000000; $i++)
strlen("hallo");
}
/****/
function hallo($a) {
}
function simpleucall() {
for ($i = 0; $i < 1000000; $i++)
hallo("hallo");
}
/****/
function simpleudcall() {
for ($i = 0; $i < 1000000; $i++)
hallo2("hallo");
}
function hallo2($a) {
}
/****/
function mandel() {
$w1=50;
$h1=150;
$recen=-.45;
$imcen=0.0;
$r=0.7;
$s=0; $rec=0; $imc=0; $re=0; $im=0; $re2=0; $im2=0;
$x=0; $y=0; $w2=0; $h2=0; $color=0;
$s=2*$r/$w1;
$w2=40;
$h2=12;
for ($y=0 ; $y<=$w1; $y=$y+1) {
$imc=$s*($y-$h2)+$imcen;
for ($x=0 ; $x<=$h1; $x=$x+1) {
$rec=$s*($x-$w2)+$recen;
$re=$rec;
$im=$imc;
$color=1000;
$re2=$re*$re;
$im2=$im*$im;
while( ((($re2+$im2)<1000000) && $color>0)) {
$im=$re*$im*2+$imc;
$re=$re2-$im2+$rec;
$re2=$re*$re;
$im2=$im*$im;
$color=$color-1;
}
if ( $color==0 ) {
print "_";
} else {
print "#";
}
}
print "<br>";
flush();
}
}
/****/
function mandel2() {
$b = " .:,;!/>)|&IH%*#";
//float r, i, z, Z, t, c, C;
for ($y=30; printf("\n"), $C = $y*0.1 - 1.5, $y--;){
for ($x=0; $c = $x*0.04 - 2, $z=0, $Z=0, $x++ < 75;){
for ($r=$c, $i=$C, $k=0; $t = $z*$z - $Z*$Z + $r, $Z = 2*$z*$Z + $i, $z=$t, $k<5000; $k++)
if ($z*$z + $Z*$Z > 500000) break;
echo $b[$k%16];
}
}
}
/****/
function Ack($m, $n){
if($m == 0) return $n+1;
if($n == 0) return Ack($m-1, 1);
return Ack($m - 1, Ack($m, ($n - 1)));
}
function ackermann($n) {
$r = Ack(3,$n);
print "Ack(3,$n): $r\n";
}
/****/
function ary($n) {
for ($i=0; $i<$n; $i++) {
$X[$i] = $i;
}
for ($i=$n-1; $i>=0; $i--) {
$Y[$i] = $X[$i];
}
$last = $n-1;
print "$Y[$last]\n";
}
/****/
function ary2($n) {
for ($i=0; $i<$n;) {
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
$X[$i] = $i; ++$i;
}
for ($i=$n-1; $i>=0;) {
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
$Y[$i] = $X[$i]; --$i;
}
$last = $n-1;
print "$Y[$last]\n";
}
/****/
function ary3($n) {
for ($i=0; $i<$n; $i++) {
$X[$i] = $i + 1;
$Y[$i] = 0;
}
for ($k=0; $k<1000; $k++) {
for ($i=$n-1; $i>=0; $i--) {
$Y[$i] += $X[$i];
}
}
$last = $n-1;
print "$Y[0] $Y[$last]\n";
}
/****/
function fibo_r($n){
return(($n < 2) ? 1 : fibo_r($n - 2) + fibo_r($n - 1));
}
function fibo($n) {
$r = fibo_r($n);
print "$r\n";
}
/****/
function hash1($n) {
for ($i = 1; $i <= $n; $i++) {
$X[dechex($i)] = $i;
}
$c = 0;
for ($i = $n; $i > 0; $i--) {
if ($X[dechex($i)]) { $c++; }
}
print "$c\n";
}
/****/
function hash2($n) {
for ($i = 0; $i < $n; $i++) {
$hash1["foo_$i"] = $i;
$hash2["foo_$i"] = 0;
}
for ($i = $n; $i > 0; $i--) {
foreach($hash1 as $key => $value) $hash2[$key] += $value;
}
$first = "foo_0";
$last = "foo_".($n-1);
print "$hash1[$first] $hash1[$last] $hash2[$first] $hash2[$last]\n";
}
/****/
function gen_random ($n) {
global $LAST;
return( ($n * ($LAST = ($LAST * IA + IC) % IM)) / IM );
}
function heapsort_r($n, &$ra) {
$l = ($n >> 1) + 1;
$ir = $n;
while (1) {
if ($l > 1) {
$rra = $ra[--$l];
} else {
$rra = $ra[$ir];
$ra[$ir] = $ra[1];
if (--$ir == 1) {
$ra[1] = $rra;
return;
}
}
$i = $l;
$j = $l << 1;
while ($j <= $ir) {
if (($j < $ir) && ($ra[$j] < $ra[$j+1])) {
$j++;
}
if ($rra < $ra[$j]) {
$ra[$i] = $ra[$j];
$j += ($i = $j);
} else {
$j = $ir + 1;
}
}
$ra[$i] = $rra;
}
}
function heapsort($N) {
global $LAST;
define("IM", 139968);
define("IA", 3877);
define("IC", 29573);
$LAST = 42;
for ($i=1; $i<=$N; $i++) {
$ary[$i] = gen_random(1);
}
heapsort_r($N, $ary);
printf("%.10f\n", $ary[$N]);
}
/****/
function mkmatrix ($rows, $cols) {
$count = 1;
$mx = array();
for ($i=0; $i<$rows; $i++) {
for ($j=0; $j<$cols; $j++) {
$mx[$i][$j] = $count++;
}
}
return($mx);
}
function mmult ($rows, $cols, $m1, $m2) {
$m3 = array();
for ($i=0; $i<$rows; $i++) {
for ($j=0; $j<$cols; $j++) {
$x = 0;
for ($k=0; $k<$cols; $k++) {
$x += $m1[$i][$k] * $m2[$k][$j];
}
$m3[$i][$j] = $x;
}
}
return($m3);
}
function matrix($n) {
$SIZE = 30;
$m1 = mkmatrix($SIZE, $SIZE);
$m2 = mkmatrix($SIZE, $SIZE);
while ($n--) {
$mm = mmult($SIZE, $SIZE, $m1, $m2);
}
print "{$mm[0][0]} {$mm[2][3]} {$mm[3][2]} {$mm[4][4]}\n";
}
/****/
function nestedloop($n) {
$x = 0;
for ($a=0; $a<$n; $a++)
for ($b=0; $b<$n; $b++)
for ($c=0; $c<$n; $c++)
for ($d=0; $d<$n; $d++)
for ($e=0; $e<$n; $e++)
for ($f=0; $f<$n; $f++)
$x++;
print "$x\n";
}
/****/
function sieve($n) {
$count = 0;
while ($n-- > 0) {
$count = 0;
$flags = range (0,8192);
for ($i=2; $i<8193; $i++) {
if ($flags[$i] > 0) {
for ($k=$i+$i; $k <= 8192; $k+=$i) {
$flags[$k] = 0;
}
$count++;
}
}
}
print "Count: $count\n";
}
/****/
function strcat($n) {
$str = "";
while ($n-- > 0) {
$str .= "hello\n";
}
$len = strlen($str);
print "$len\n";
}
/*****/
function getmicrotime()
{
$t = gettimeofday();
return ($t['sec'] + $t['usec'] / 1000000);
}
function start_test()
{
ob_start();
return getmicrotime();
}
function end_test($start, $name)
{
global $total;
$end = getmicrotime();
ob_end_clean();
$total += $end-$start;
$num = number_format($end-$start,3);
$pad = str_repeat(" ", 24-strlen($name)-strlen($num));
echo $name.$pad.$num."\n";
ob_start();
return getmicrotime();
}
function total()
{
global $total;
$pad = str_repeat("-", 24);
echo $pad."\n";
$num = number_format($total,3);
$pad = str_repeat(" ", 24-strlen("Total")-strlen($num));
echo "Total".$pad.$num."\n";
}
$t0 = $t = start_test();
simple();
$t = end_test($t, "simple");
simplecall();
$t = end_test($t, "simplecall");
simpleucall();
$t = end_test($t, "simpleucall");
simpleudcall();
$t = end_test($t, "simpleudcall");
mandel();
$t = end_test($t, "mandel");
mandel2();
$t = end_test($t, "mandel2");
ackermann(7);
$t = end_test($t, "ackermann(7)");
ary(50000);
$t = end_test($t, "ary(50000)");
ary2(50000);
$t = end_test($t, "ary2(50000)");
ary3(2000);
$t = end_test($t, "ary3(2000)");
fibo(30);
$t = end_test($t, "fibo(30)");
hash1(50000);
$t = end_test($t, "hash1(50000)");
hash2(500);
$t = end_test($t, "hash2(500)");
heapsort(20000);
$t = end_test($t, "heapsort(20000)");
matrix(20);
$t = end_test($t, "matrix(20)");
nestedloop(12);
$t = end_test($t, "nestedloop(12)");
sieve(30);
$t = end_test($t, "sieve(30)");
strcat(200000);
$t = end_test($t, "strcat(200000)");
total($t0, "Total");
?>