benchmark de php pour sprintf, strtr et str_replace

Résultat

test	chrono secondes	ratio 'hello'	ratio time()	ratio sprintf('a %s', time())	ratio sprintf('a %s', 'hello')
$a = time();	0.06343	1.86853	1.00000	0.31449	0.41980
$a = sprintf('a %s', time());	0.20170	5.94150	3.17977	1.00000	1.33487
$a = str_replace('%s', time(), 'a %s');	0.21558	6.35046	3.39864	1.06883	1.42675
$a = strtr('a %s', array('%s'=> time() ));	0.28658	8.44190	4.51793	1.42084	1.89663
$a = str_replace('%t', time(), str_replace('%u', time(), str_replace('%s', time(), 'a %s %t %u'));	0.55867	16.45710	8.80751	2.76985	3.69740
$a = str_replace(array('%t','%u','%s'), array(time(),time(),time(),), 'a %s %t %u');	0.68971	20.31712	10.87331	3.41953	4.56463
$a = strtr('a %s %t %u', array('%s'=> time(), '%t'=> time(), '%u'=> time(), ));	0.49643	14.62383	7.82637	2.46130	3.28552
$a = 'hello';	0.03395	1.00000	0.53518	0.16831	0.22467
$a = sprintf('a %s', 'hello');	0.15110	4.45099	2.38208	0.74914	1.00000
$a = str_replace('%s', 'hello', 'a %s');	0.16122	4.74905	2.54160	0.79930	1.06696
$a = strtr('a %s', array('%s'=> 'hello' ));	0.20034	5.90146	3.15834	0.99326	1.32588
$a = str_replace('%t', 'hello', str_replace('%u', 'hello', str_replace('%s', 'hello', 'a %s %t %u'));	0.40817	12.02365	6.43481	2.02367	2.70134
$a = str_replace(array('%t','%u','%s'), array('hello','hello','hello',), 'a %s %t %u');	0.51825	15.26657	8.17036	2.56948	3.42993
$a = strtr('a %s %t %u', array('%s'=> 'hello', '%t'=> 'hello', '%u'=> 'hello', ));	0.31929	9.40561	5.03369	1.58303	2.11315

test

chrono secondes

ratio
'hello'

ratio
time()

ratio
sprintf('a %s', time())

ratio
sprintf('a %s', 'hello')

$a = time();

0.06343

1.86853

1.00000

0.31449

0.41980

$a = sprintf('a %s', time());

0.20170

5.94150

3.17977

1.00000

1.33487

$a = str_replace('%s', time(), 'a %s');

0.21558

6.35046

3.39864

1.06883

1.42675

$a = strtr('a %s', array('%s'=> time() ));

0.28658

8.44190

4.51793

1.42084

1.89663

$a = str_replace('%t', time(), str_replace('%u', time(), str_replace('%s', time(), 'a %s %t %u'));

0.55867

16.45710

8.80751

2.76985

3.69740

$a = str_replace(array('%t','%u','%s'), array(time(),time(),time(),), 'a %s %t %u');

0.68971

20.31712

10.87331

3.41953

4.56463

$a = strtr('a %s %t %u', array('%s'=> time(), '%t'=> time(), '%u'=> time(), ));

0.49643

14.62383

7.82637

2.46130

3.28552

$a = 'hello';

0.03395

1.00000

0.53518

0.16831

0.22467

$a = sprintf('a %s', 'hello');

0.15110

4.45099

2.38208

0.74914

1.00000

$a = str_replace('%s', 'hello', 'a %s');

0.16122

4.74905

2.54160

0.79930

1.06696

$a = strtr('a %s', array('%s'=> 'hello' ));

0.20034

5.90146

3.15834

0.99326

1.32588

$a = str_replace('%t', 'hello', str_replace('%u', 'hello', str_replace('%s', 'hello', 'a %s %t %u'));

0.40817

12.02365

6.43481

2.02367

2.70134

$a = str_replace(array('%t','%u','%s'), array('hello','hello','hello',), 'a %s %t %u');

0.51825

15.26657

8.17036

2.56948

3.42993

$a = strtr('a %s %t %u', array('%s'=> 'hello', '%t'=> 'hello', '%u'=> 'hello', ));

0.31929

9.40561

5.03369

1.58303

2.11315

[PHP]
<?php

$timeList = array();
$testTitle  = array();
$testTitle [] = "\$a = time();";
$nb_occur=100000;
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
   $a = time();
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;
$refTime2=$time;
$testTitle [] = "\$a = sprintf('a %s', time());";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = sprintf('a %s', time());
}

$time_end = microtime(true);
$time = $time_end - $time_start;
$refTime3=$time;
$timeList[]=$time;

$testTitle [] = "\$a = str_replace('%s', time(), 'a %s');";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = str_replace('%s', time(), 'a %s');
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


$testTitle [] = "\$a = strtr('a %s', array('%s'=> time() ));";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = strtr('a %s', array('%s'=> time() ));
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


$testTitle [] = "\$a = str_replace('%t', time(), str_replace('%u', time(), str_replace('%s', time(), 'a %s %t %u'));";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = str_replace('%t', time(), str_replace('%u', time(), str_replace('%s', time(), 'a %s %t %u')));
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


$testTitle [] = "\$a = str_replace(array('%t','%u','%s'), array(time(),time(),time(),), 'a %s %t %u');";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{

    $a = str_replace(array('%t','%u','%s'), array(time(),time(),time(),), 'a %s %t %u');
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


$testTitle [] = "\$a = strtr('a %s %t %u', array('%s'=> time(), '%t'=> time(), '%u'=> time(), ));";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = strtr('a %s %t %u', array('%s'=> time(), '%t'=> time(), '%u'=> time(), ));
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;



$testTitle [] = "\$a = 'hello';";
$nb_occur=100000;
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
   $a = 'hello';
}

$time_end = microtime(true);
$time = $time_end - $time_start;
$refTime1=$time;
$timeList[]=$time;

$testTitle [] = "\$a = sprintf('a %s', 'hello');";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = sprintf('a %s', 'hello');
}

$time_end = microtime(true);
$time = $time_end - $time_start;
$refTime4=$time;
$timeList[]=$time;

$testTitle [] = "\$a = str_replace('%s', 'hello', 'a %s');";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = str_replace('%s', 'hello', 'a %s');
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


$testTitle [] = "\$a = strtr('a %s', array('%s'=> 'hello' ));";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = strtr('a %s', array('%s'=> 'hello' ));
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


$testTitle [] = "\$a = str_replace('%t', 'hello', str_replace('%u', 'hello', str_replace('%s', 'hello', 'a %s %t %u'));";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = str_replace('%t', 'hello', str_replace('%u', 'hello', str_replace('%s', 'hello', 'a %s %t %u')));
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


$testTitle [] = "\$a = str_replace(array('%t','%u','%s'), array('hello','hello','hello',), 'a %s %t %u');";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = str_replace(array('%t','%u','%s'), array('hello','hello','hello',), 'a %s %t %u');
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


$testTitle [] = "\$a = strtr('a %s %t %u', array('%s'=> 'hello', '%t'=> 'hello', '%u'=> 'hello', ));";
$time_start = microtime(true);
for ($i=0 ; $i<$nb_occur; $i++)
{
    $a = strtr('a %s %t %u', array('%s'=> 'hello', '%t'=> 'hello', '%u'=> 'hello', ));
}

$time_end = microtime(true);
$time = $time_end - $time_start;

$timeList[]=$time;


echo 'éxécuté '.$nb_occur.' fois <table border=1><tr><th>test<th>chrono secondes<th>ratio<br/>\'hello\'<th>ratio<br/>time()<th>ratio<br />sprintf(\'a %s\', time())<th>ratio<br/>sprintf(\'a %s\', \'hello\')</tr>';
foreach($timeList as $k=>$chrono)
{

    echo '<tr><td>' . $testTitle [$k]    
    . '<td>' 
    . sprintf('%01.5f',$chrono) 
    . '<td />' 
    . sprintf('%01.5f',$chrono/$refTime1) 
    . '<td />' 
    . sprintf('%01.5f',$chrono/$refTime2) 
        . '<td />' 
    . sprintf('%01.5f',$chrono/$refTime3) 
        . '<td />' 
    . sprintf('%01.5f',$chrono/$refTime4) 
    
    ;

}
echo '</table>';
?>