<?php
if (function_exists("date_default_timezone_set")) {
	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 gethrtime()
{
 $hrtime = hrtime();
 return (($hrtime[0]*1000000000 + $hrtime[1]) / 1000000000);
}

function start_test()
{
	ob_start();
 return gethrtime();
}

function end_test($start, $name)
{
 global $total;
 $end = gethrtime();
 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 gethrtime();
}

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();
?>