Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

PHPÊý¾Ý½á¹¹——¶þ·Ö²éÕÒÓë˳Ðò²éÕÒ

<?php
//--------------------
// »ù±¾Êý¾Ý½á¹¹
//--------------------
//¶þ·Ö²éÕÒ£¨Êý×éÀï²éÕÒij¸öÔªËØ£©
function bin_sch($arr, $low, $high, $k) {
if($low<=$high) {
$mid = intval(($low+$high)/2);
if($arr[$mid] == $k) {
return $mid;
} elseif($k<$arr[$mid]) {
return bin_sch($arr,$low,$mid-1,$k);
} elseif($k>$arr[$mid]) {
return bin_sch($arr,$mid+1,$high,$k);
}
}
return -1;
}
//˳Ðò²éÕÒ£¨Êý×éÀï²éÕÒij¸öÔªËØ£©
function seq_sch($array, $n, $k) {
$array[$n] = $k;
for($i=0; $i<$n; $i++) {
if($array[$i]==$k) {
break;
}
}
if($i<$n) {
return $i."The Element is here";
} else {
return '-1Sorry';
}
}
for($i=0;$i<1000000;$i++) {//²âÊÔÊý×é
$arr1[$i] = $i+1;
}
$time_start = explode(" ",microtime());
seq_sch($arr1,1000000,895624);
$time_end = explode(" ", microtime());
echo "˳Ðò²éÕÒ·¨ËùÐèÒªµÄʱ¼ä:";
echo ($time_end[0]+$time_end[1] - $time_start[0]-$time_start[1])."<br>";////²âÊÔ˳Ðò²éÕÒ·¨ËùÐèÒªµÄʱ¼ä
echo '----------------------------------——————'.'<br>';
$time_start = explode(" ",microtime());
bin_sch($arr1,0,999999,895624).'<br>';
$time_end = explode(' ', microtime());
echo "¶þ·Ö²éÕÒ·¨ËùÐèÒªµÄʱ¼ä:";
echo ($time_end[0]+$time_end[1] - $time_start[0]-$time_start[1]).'<br>';//²âÊÔ¶þ·Ö²éÕÒ·¨ËùÐèÒªµÄʱ¼ä
?>
²âÊÔ½á¹û£º
˳Ðò²éÕÒ·¨ËùÐèÒªµÄʱ¼ä:0.36866903305054
----------------------------------
¶þ·Ö²éÕÒ·¨ËùÐèÒªµÄʱ¼ä:0.00011110305786133
ÔÚÖ´ÐÐЧÂÊÉ϶þ·Ö²éÕÒ·¨Ô¶´óÓÚ˳Ðò²éÕÒ·¨


Ïà¹ØÎĵµ£º

ÐÖµÜÁ¬ÉçÍÅ——È«¹ú×î´óµÄPHP¼¼ÊõÉçÍÅ

1¡¢ÉçÍżò½é£º
LAMPÐÖµÜÁ¬ÉçÍÅ£¨¼ò³ÆÐÖµÜÁ¬£©ÊÇÒ×µÚÓŽÌÓýѧԺÁ쵼ϵÄÉçÍÅ×éÖ¯£¬ÊÇѧԺÁªÏµ¹ã´óLAMP°®ºÃÕßµÄÇÅÁººÍŦ´ø£¬ÊÇѧԺÉçÍŹÜÀíЭµ÷µÄ»ú¹¹¡£
2¡¢ÉçÍÅÐÔÖÊ£º
ÓÉLAMPÐÖµÜÁ¬·¢Æð£¨www.lampbrother.net£©µÄÈ«¹úרҵÐÔ¡¢¹«ÒæÐÔÉç»áɳÁú×éÖ¯¡£
3¡¢ÉçÍÅÄ¿µÄ£º
a¡¢Îª°®ºÃLAMPµÄÅóÓÑÃǴһ¸öѧϰ½»Á÷µÄƽ̨
b¡¢Îª ......

Óà ignore_user_abortº¯ÊýʵÏÖphp¼Æ»®ÈÎÎñ

˵µ½¼Æ»®ÈÎÎñ´ó¼Ò¿ÉÄܶ¼Ïëµ½ÓÃcrontabÀ´ÊµÏÖ¡£¿ÉÊDz¢²»ÊÇËùÓÐÈ˶¼ÊÇʹÓÃlinuxϵͳ£¬Ò²²»ÊÇËùÓÐÈ˶¼ÓжÀÁ¢·þÎñÆ÷¡£ÕâʱºòÈçºÎÓÃphpÀ´
ʵÏּƻ®ÈÎÎñÄØ¡£
º¯Êý- ignore_user_abort()
£¬
Õâ¸öº¯Êý¿ÉÒÔ°ïÖúÎÒÃÇʵÏÖÏñlinuxÖеÄcronÒ»ÑùʵÏּƻ®ÈÎÎñ£¬ÏÂÃæÒ»ÆðÀ´¿´Ï¸ÃÈçºÎÀ´ÊµÏÖ¡£
¸Ãº¯Êý°´ÕÕ×ÖÃæÒâ˼¾ÍÊÇ“ºöÂÔÓû§Ö ......

²é¿´Ò³ÃæÖ´ÐÐphpÕ¼ÓÃÄÚ´æÇé¿ö

½ñÌìÍ·ÄÔÒ»ÈÈ£¬Ïë¿´Ò»ÏÂÒ³ÃæÔÚÖ´ÐеĹý³ÌÖÐÕ¼ÓÃÁ˶àÉÙÄڴ棬ÎÒÒ²²»ÖªµÀÕâÑù×öµÄÄ¿µÄÊÇʲô£¬¿ÉÄÜÊdzöÓÚÎҵĹßÐÔ˼ά°É¡£²»¹ýÕâÑù×öÒ²²»ÊÇÍêȫûÓã¬
Äã¿ÉÒÔÇå³þµÄÖªµÀÄÄÐ©Ò³ÃæÕ¼ÓõÄÄÚ´æ±È½Ï¶à£¬ÌرðÊǶÔÓÚʹÓù²ÓÃÖ÷»úµÄÍøÕ¾£¬Ò»°ã¿Õ¼äÉ̶¼»áÏÞÖÆÃ¿¸öÍøÕ¾µÄ×ÊÔ´Õ¼ÓÃÇé¿öµÄ£¨°üÀ¨cpuºÍÄڴ棩¡£ÍòÒ»ÔÚÎÒ
ÃDz»ÖªµÀµÄÇé¿öÏ£ ......

PHP ¸ßЧд·¨

0¡¢Óõ¥ÒýºÅ´úÌæË«ÒýºÅÀ´°üº¬×Ö·û´®£¬ÕâÑù×ö»á¸ü¿ìһЩ¡£ÒòΪPHP»áÔÚË«ÒýºÅ°üΧµÄ×Ö·û´®ÖÐËÑѰ±äÁ¿£¬µ¥ÒýºÅÔò²»»á£¬×¢Ò⣺ֻÓÐechoÄÜÕâô
×ö£¬ËüÊÇÒ»ÖÖ¿ÉÒ԰Ѷà¸ö×Ö·û´®µ±×÷²ÎÊýµÄ“º¯Êý”(Òë×¢£ºPHPÊÖ²áÖÐ˵echoÊÇÓïÑԽṹ£¬²»ÊÇÕæÕýµÄº¯Êý£¬¹Ê°Ñº¯Êý¼ÓÉÏÁËË«ÒýºÅ)¡£
¡¡¡¡1¡¢Èç¹ûÄܽ«ÀàµÄ·½·¨¶¨Òå³Éstatic£¬¾Í ......

PHP ÅжÏÊÇ·ñµÍË×ͼƬ==ÊÇ·ñ@É«@Çé@ͼ@Ƭ

if(validatorImage("d:\b.jpg"))
echo 'ÊǸöµÍË×ͼƬ<br />';
else
echo '²»ÊǵÍË×ͼƬ<br />';
function validatorImage($fileName){
$image = getImage($fileName);
$width = ImagesX($image);
$height = ImagesY($image);
$ycb = 0;
for($y=0;$y<$height;$y++){
for($x=0;$x<$widt ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ