26-09-2006, 20:07
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חבר מתאריך: 02.10.05
הודעות: 2,355
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Switch VS IF הכנתי לכם BanchMark
החלטתי לעשות BanchMark לבדוק מה יותר מהיר, Switch או תנאי IF, שניהם עם 3 שלבים, בתוך לולאה שרצה 100 פעמים בשביל שירגישו יותר את ההבדל, ואלו התוצאות! לקוד הזה:
קוד PHP:
<?php
//this script is a tool devoloped by tNadav from www.fresh.co.il
//banchMark tool
$start_time = 0;
$end_time = 0;
//set start time
$mtime = explode(" ", microtime());
$start_time = $mtime[1] + $mtime[0];
//start the code and we check the time its take...
//start of code...
for($i = 1; $i < 100; $i++)
{
$d = $i;
if($d > 3 )
$d = 1;
if($d == 1)
echo "d is one <br />\n";
elseif($d == 2)
echo "d is two <br />\n";
else
echo "d is bigger then two <br />\n";
$d++;
}
//end of code...
//set end time
$mtime = explode(" ", microtime());
$end_time = $mtime[1] + $mtime[0];
//set total time
echo "\n<br />total time:";
echo substr(($end_time - $start_time), 0, 10);
?>
זה"כ זמן ריצה:
0.00020503
נגד הקוד הזה:
קוד PHP:
<?php
<?php
//this script is a tool devoloped by tNadav from www.fresh.co.il
//banchMark tool
$start_time = 0;
$end_time = 0;
//set start time
$mtime = explode(" ", microtime());
$start_time = $mtime[1] + $mtime[0];
//start the code and we check the time its take...
//start of code...
for($i = 1; $i < 100; $i++)
{
$d = $i;
if($d > 3 )
$d = 1;
switch($d)
{
case 1:
echo "d is one <br />\n";
break;
case 2:
echo "d is two <br />\n";
break;
default:
echo "d is bigger then two <br />\n";
}
$d++;
}
//end of code...
//set end time
$mtime = explode(" ", microtime());
$end_time = $mtime[1] + $mtime[0];
//set total time
echo "\n<br />total time:";
echo substr(($end_time - $start_time), 0, 10);
?>
סה"כ זמן:
0.00018906
ועוד קוד.. שיטת עבודה שונה ב- Switch..
קוד PHP:
<?php
//this script is a tool devoloped by tNadav from www.fresh.co.il
//banchMark tool
$start_time = 0;
$end_time = 0;
//set start time
$mtime = explode(" ", microtime());
$start_time = $mtime[1] + $mtime[0];
//start the code and we check the time its take...
//start of code...
for($i = 1; $i < 100; $i++)
{
$d = $i;
if($d > 3 )
$d = 1;
switch(true)
{
case $d == 1:
echo "d is one <br />\n";
break;
case $d == 2:
echo "d is two <br />\n";
break;
default:
echo "d is bigger then two <br />\n";
}
$d++;
}
//end of code...
//set end time
$mtime = explode(" ", microtime());
$end_time = $mtime[1] + $mtime[0];
//set total time
echo "\n<br />total time:";
echo substr(($end_time - $start_time), 0, 10);
?>
סה"כ זמן:
0.00038719
מקווה לחוות דעת לגבי תנאים שווים וכו' וכו'..
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