test_seconds;
$count = 0;
$start = microtime(1);
$time = 0;
while ($time < $seconds) {
$ret = call_user_func_array($func,$args);
$time = microtime(1) - $start;
$count++;
}
$this->results['count'][$name] = intval($count / $seconds);
$this->results['return'][$name] = $ret;
}
public function summary() {
if (php_sapi_name() === 'cli') {
$this->text_summary();
} else {
$this->html_summary();
}
}
public function text_summary() {
if (sizeof($this->results['count']) === 0) {
print "No results found";
return false;
}
$php_version = phpversion();
print "PHP Version: $php_version\n\n";
arsort($this->results['count']);
$test_names = array_keys($this->results['count']);
$max_len = 0;
$total_len = 0;
foreach ($test_names as $name) {
$total_len += strlen($name);
if (strlen($name) > $max_len) {
$max_len = strlen($name);
}
}
##############################################
print str_repeat(" ",$max_len + 4);
print join(" | ",$test_names) . "\n";
// The length of the bar is the total length of the test names,
// plus the " | " between each word test pair,
// plus four because there are two spaces at the start and end
$additional = (sizeof($test_names) - 1) * 3;
$bar = str_repeat(" ",$max_len + 2) . str_repeat("-",$total_len + $additional + 4) . "\n";
print $bar;
foreach($test_names as $y_name) {
printf(" %{$max_len}s |",$y_name);
foreach ($test_names as $x_name) {
$x_val = $this->results['count'][$x_name];
$y_val = $this->results['count'][$y_name];
$percent = round(($y_val / $x_val) * 100,2) . "%";
$col_width = strlen($x_name) + 1;
if ($y_val == $x_val) {
$percent = "N/A";
}
//printf(" %{$col_width}s",$percent);
printf("%{$col_width}s |","$percent");
}
print "\n";
}
print $bar;
print "\n";
$max_len += 1;
$expected_results = reset($this->results['return']);
//print_r($this->results['count']);
foreach($test_names as $name) {
$count = $this->results['count'][$name];
$ret = $this->results['return'][$name];
if ($this->include_sample_output) {
printf(" %s = %d interations per second\n",$name,$count);
if ($this->show_differences && ($ret !== $expected_results)) {
print " ** Return value from this function differs from the first test **\n";
}
$print_r_output = trim(print_r($ret,true));
$print_r_output = preg_replace("/^/m"," ",$print_r_output);
print " Sample output: \n$print_r_output\n\n";
} else {
printf("%{$max_len}s = %d interations per second\n",$name,$count);
}
}
}
public function html_summary() {
if (sizeof($this->results['count']) === 0) {
print "No results found
";
return false;
}
arsort($this->results['count']);
$tests = array_keys($this->results['count']);
array_unshift($tests,' ');
$first = 1;
$php_version = phpversion();
$out = "PHP Version: $php_version
\n";
$header_color = '#CCE6FF';
$out .= "\n";
$x = 0;
foreach ($tests as $name) {
$out .= "\t\n";
if ($first) {
foreach ($tests as $i) {
$out .= "\t\t| $i | \n";
}
$first = 0;
} else {
$column = 0;
$y = 0;
foreach ($tests as $i) {
if ($column == 0) {
$content = $tests[$x + 1];
$align = 'right';
$x++;
$color = $header_color;
$fw = 'bold';
} else {
$y++;
$x_name = $tests[$x];
$y_name = $tests[$y];
$a = $this->results['count'][$x_name];
$b = $this->results['count'][$y_name];
$percentage = sprintf("%.2f%%",($a / $b) * 100);
if ($x === $y) {
$content = 'N/A
';
} else {
$content = "$percentage";
}
$align = 'center';
$color = 'white';
$fw = 'normal';
}
$out .= "\t\t$content | \n";
$column++;
}
}
$out .= "\t
\n";
}
$out .= "
";
$out .= "
";
$slowest = min($this->results['count']);
$fastest = max($this->results['count']);
$expected_results = reset($this->results['return']);
foreach ($this->results['count'] as $test => $speed) {
if ($speed == $fastest) {
$extra = "(Fastest)";
} elseif ($speed == $slowest) {
$extra = "(Slowest)";
} else {
$extra = '';
}
$ret = $this->results['return'][$test];
$out .= "$test = $speed iterations per second $extra
";
if ($this->show_differences && ($ret !== $expected_results)) {
$out .= "Note: Return value from this function differs from the first test
\n";
}
if ($this->include_sample_output) {
$out .= "Sample output: " . print_r($ret,true) . "
\n";
}
}
print $out;
}
public function reset() {
$this->results = array();
}
} // End of class
//////////////////////////////////////////////////////////////////////////////
$str = " Monday Tuesday Wednesday Thursday Friday\nSaturday\tSunday";
$a = function($str) {
return str_word_count($str,1,"!\"#$%&'()*+,./0123456789-:;<=>?@[\]^_`{|}~");
};
$c = function($str) {
return preg_split("/\s+/",trim($str));
};
$d = function($string){
return array_filter(explode(' ', implode(' ', array_map('trim', explode("\n", $string)))));
};
$e = function($str) {
$str = trim($str);
$words = array();
$len = strlen($str);
$word = '';
for ($i = 0; $i < $len; $i++) {
$char = $str[$i];
$ord = ord($char);
// Is a character
if ($ord > 32 && $ord < 127) {
$word .= $char;
// It's some sort of whitespace
} else {
if ($word) {
$words[] = $word;
}
$word = '';
}
}
if ($word) {
$words[] = $word;
}
return $words;
};
$f = function($str,$return_hash = false) {
$str = trim($str);
// Word characters are any printable char
$words = str_word_count($str,1,"!\"#$%&'()*+,./0123456789-:;<=>?@[\]^_`{|}~");
if ($return_hash) {
$ret = array();
$num = sizeof($words);
// Odd number of elements, can't build a hash
if ($num % 2 == 1) {
return array();
} else {
// Loop over each word and build a key/value hash
for ($i = 0; $i < $num; $i += 2) {
$key = $words[$i];
$value = $words[$i + 1];
$ret[$key] = $value;
}
return $ret;
}
} else {
return $words;
}
};
////////////(//////////////////////////////////////////////////////////////////
$bm = new benchmark;
$bm->include_sample_output = 0; // Include sample return data in HTML summary
$bm->show_differences = 1; // Show differences in the function return
$bm->test_seconds = 1; // Number of seconds to run each test for
// Run the benchmark on each function
// $bm->time_this($name, $anonymous_function, array of arguments to pass);
$bm->time_this('str_word_count',$a,array($str));
$bm->time_this('preg_split',$c,array($str));
$bm->time_this('reddit_split',$d,array($str));
$bm->time_this('scott_qw_raw',$e,array($str));
$bm->time_this('scott_qw_final',$f,array($str));
// Print out the summary of the benchmarks we've run
$bm->summary();