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error_operator.php
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error_operator.php
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<?php
/**
* Benchmark tests for using error operator
* Usage: php -q error_operator.php
*/
if(!function_exists('memory_get_usage')) {
function memory_get_usage() {
return -1;
}
}
if(PHP_SAPI != 'cli') {
die("Please run this script from command line");
}
$loops = 100000;
if($_SERVER['argc'] == 1) {
$secs = array();
$results = array();
echo 'Running bench:';
for($i = 1; $i < 7; $i++) {
$cmd = $_SERVER[_] . ' ' . $_SERVER['SCRIPT_FILENAME'] . ' ' . $i;
$ret = unserialize(`$cmd`);
$secs[] = $ret[1];
$results[] = $ret;
echo '.';
}
echo 'done' . PHP_EOL;
} else {
switch ($_SERVER['argv'][1]) {
case '1':
$m = memory_get_usage();
$s = microtime(1);
for($i = 0; $i < $loops; $i++) {
$r = @ fopen('/tmp/nothing','r');
}
$return = array(
'(error) using @',
(microtime(1)-$s),
(memory_get_usage()-$m)
);
echo serialize($return);
break;
case '2':
$m = memory_get_usage();
$s = microtime(1);
for($i = 0; $i < $loops; $i++) {
$r = @ fopen(__FILE__,'r');
fclose($r);
}
$return = array(
'(non-error) using @',
(microtime(1)-$s),
(memory_get_usage()-$m)
);
echo serialize($return);
break;
case '3':
$m = memory_get_usage();
$s = microtime(1);
$old = error_reporting(0);
for($i = 0; $i < $loops; $i++) {
$r = fopen('/tmp/nothing','r');
}
error_reporting($old );
$return = array(
'(error) E_NONE global',
(microtime(1)-$s),
(memory_get_usage()-$m)
);
echo serialize($return);
break;
case '4':
$m = memory_get_usage();
$s = microtime(1);
$old = error_reporting(0);
for($i = 0; $i < $loops; $i++) {
$r = fopen(__FILE__,'r');
fclose($r);
}
error_reporting($old );
$return = array(
'(non-error) E_NONE global',
(microtime(1)-$s),
(memory_get_usage()-$m)
);
echo serialize($return);
break;
case '5':
$m = memory_get_usage();
$s = microtime(1);
for($i = 0; $i < $loops; $i++) {
$old = error_reporting(0);
$r = fopen('/tmp/nothing','r');
error_reporting($old );
}
$return = array(
'(error) E_NONE local',
(microtime(1)-$s),
(memory_get_usage()-$m)
);
echo serialize($return);
break;
case '6':
$m = memory_get_usage();
$s = microtime(1);
for($i = 0; $i < $loops; $i++) {
$old = error_reporting(0);
$r = fopen(__FILE__,'r');
fclose($r);
error_reporting($old );
}
$return = array(
'(non-error) E_NONE local',
(microtime(1)-$s),
(memory_get_usage()-$m)
);
echo serialize($return);
break;
}
exit;
}
$php = PHP_VERSION;
$type = gettype($elem);
echo <<<head
error operator (@) vs error_reporting(0) in PHP v$php
(error) - this tests produce an error
(non-error) - this tests produce no error
+-----------------------------------+-------+----------+-------+
| description | sec | memory | % |
+-----------------------------------+-------+----------+-------+
head;
asort($secs);
$i = 0;
foreach ($secs as $k => $v) {
if($i == 0) {
$best = $results[$k][1];
$results[$k][3] = '100%';
} else {
$results[$k][3] = round(($results[$k][1] * 100) / $best) . '%';
}
echo sprintf(
"| %-33s | %-5s | %-8s | %-5s |\n+%'-35s+%'-7s+%'-10s+%'-7s+\n",
$results[$k][0],
round($results[$k][1],3),
$results[$k][2],
$results[$k][3],
'','','',''
);
$i++;
}
echo "\n\n";