kinpoo
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注册 2004-8-30
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serialize+unserialize+file_get_contents进行数组缓存 更快
<?php
/*
@kinpoo
结果表明:
使用serialize,unserialize将数组以字符串保存 使用文件函数读取
比直接将数组缓存(保存为普通文件) 要快好多!
*/
runTimer();
$arr = array();
/**
======================================
闪龙2500 512M内存 Windows ZendStudio(php5)
======================================
for() $arr[] = $i : 0.30359721183777
serialize($arr) : 0.04067587852478
unserialize($str) : 0.017976045608521
saveArray($arr) : 0.47954797744751
array2str($arr) : 0.075201034545898
require array.php : 0.058645963668823
uns get arr2str : 0.026206016540527
---------------------------------------
for() $arr[] = $i : 0.29530215263367
serialize($arr) : 0.040746927261353
unserialize($str) : 0.019726991653442
saveArray($arr) : 0.47745704650879
array2str($arr) : 0.081848859786987
require array.php : 0.061783075332642
uns get arr2str : 0.025933980941772
---------------------------------------
for() $arr[] = $i : 0.3032820224762
serialize($arr) : 0.04182505607605
unserialize($str) : 0.018662929534912
saveArray($arr) : 0.4787380695343
array2str($arr) : 0.064285039901733
require array.php : 0.059487104415894
uns get arr2str : 0.025193929672241
=======================================
P4 3.0*2 2G内存 FreeBSD ZUES(php4)
=======================================
for() $arr[] = $i : 0.00745916366577
serialize($arr) : 0.00995993614197
unserialize($str) : 0.00597906112671
saveArray($arr) : 0.0302128791809
array2str($arr) : 0.0132899284363
require array.php : 0.0160081386566
uns get arr2str : 0.00748491287231
---------------------------------------
for() $arr[] = $i : 0.00716590881348
serialize($arr) : 0.0100538730621
unserialize($str) : 0.00590419769287
saveArray($arr) : 0.022922039032
array2str($arr) : 0.0129978656769
require array.php : 0.0156490802765
uns get arr2str : 0.00727105140686
---------------------------------------
for() $arr[] = $i : 0.00741505622864
serialize($arr) : 0.010134935379
unserialize($str) : 0.0060088634491
saveArray($arr) : 0.0238091945648
array2str($arr) : 0.0134818553925
require array.php : 0.016517162323
uns get arr2str : 0.0071918964386
*/
/** 一维数组 10000元素 **/
//for ($i=0;$i<10000;$i++)
//{
// $arr[] = $i;
//}
/*
======================================
闪龙2500 512M内存 Windows ZendStudio(php5)
======================================
for() $arr[] = $i : 0.18432211875916
serialize($arr) : 0.031507968902588
unserialize($str) : 0.034507989883423
saveArray($arr) : 0.63693904876709
array2str($arr) : 0.028126001358032
require array.php : 0.066259860992432
uns get arr2str : 0.033874988555908
---------------------------------------
for() $arr[] = $i : 0.18541598320007
serialize($arr) : 0.030216932296753
unserialize($str) : 0.03343391418457
saveArray($arr) : 0.64722514152527
array2str($arr) : 0.03127384185791
require array.php : 0.050411224365234
uns get arr2str : 0.029117822647095
---------------------------------------
for() $arr[] = $i : 0.18497705459595
serialize($arr) : 0.029504060745239
unserialize($str) : 0.032404899597168
saveArray($arr) : 0.64386487007141
array2str($arr) : 0.021266222000122
require array.php : 0.050238847732544
uns get arr2str : 0.036464929580688
=======================================
P4 3.0*2 2G内存 FreeBSD ZUES(php4)
=======================================
for() $arr[] = $i : 0.00499582290649
serialize($arr) : 0.00840902328491
unserialize($str) : 0.00594711303711
saveArray($arr) : 0.075856924057
array2str($arr) : 0.0107200145721
require array.php : 0.0161650180817
uns get arr2str : 0.00800800323486
---------------------------------------
for() $arr[] = $i : 0.00484800338745
serialize($arr) : 0.00845813751221
unserialize($str) : 0.005854845047
saveArray($arr) : 0.0720150470734
array2str($arr) : 0.00950694084167
require array.php : 0.0161731243134
uns get arr2str : 0.00786995887756
---------------------------------------
for() $arr[] = $i : 0.00545597076416
serialize($arr) : 0.00866007804871
unserialize($str) : 0.00611996650696
saveArray($arr) : 0.0828499794006
array2str($arr) : 0.0136148929596
require array.php : 0.0294671058655
uns get arr2str : 0.0131070613861
*/
/** 1000维数组 10000元素 **/
$ref = &$arr;
for ($i=0;$i<1000;$i++)
{
$ref[0] = $i;
$ref[1] = $i;
$ref[2] = $i;
$ref[3] = $i;
$ref[4] = $i;
$ref[5] = $i;
$ref[6] = $i;
$ref[7] = $i;
$ref[8] = $i;
$ref[9] = array();
$ref = &$ref[9];
}
runTimer('for() $arr[] = $i ');
$str = serialize($arr);
runTimer('serialize($arr) ');
$arr = unserialize($str);
runTimer('unserialize($str) ');
saveArray($arr, 1);
runTimer('saveArray($arr) ');
array2str(&$arr);
runTimer('array2str($arr) ');
require('test.array.php');
runTimer('require array.php ');
$arr = unserialize(file_get_contents('test.arr2str.php'));
runTimer('uns get arr2str ');
function runTimer($str = '')
{ //统计时间
static $st = 0;
$mt = explode(' ', microtime());
$ct = $mt[0] + $mt[1];
if ($st)
echo "n$str: ", $ct - $st;
$st = $ct;
}
function saveArray(&$arr, $isbase = 0)
{ //保存数组的
$pre = '';
$str = 'array(';
foreach ($arr as $one)
{
if (is_array($one))
{
$str .= $pre.saveArray($one);
} else {
$str .= $pre."'$one'";
}
$pre = ',';
}
$str .= ')';
if ($isbase) {
$fp = fopen('test.array.php', 'wb');
fwrite($fp, "<?n$arr=$str;n?>");
fclose($fp);
}else{
return $str;
}
}
function array2str(&$arr)
{ //保存数组的serialize字符串
$fp = fopen('test.arr2str.php', 'wb');
fwrite($fp, serialize($arr));
fclose($fp);
}
?> [ 本帖最后由 kinpoo 于 2006-8-9 02:25 PM 编辑 ]
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