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PHPÓïÑÔ±¾ÉíÊDz»Ö§³Ö¶àÏ̵߳Ä. ×ܽáÁËÒ»ÏÂÍøÉϹØÓÚPHPÄ£Äâ¶àÏ̵߳ķ½·¨, ×ܵÄÀ´Ëµ, ¶¼ÊÇÀûÓÃÁËPHPµÄºÃ»ï°éÃDZ¾ÉíËù¾ßÓеĶàÏß³ÌÄÜÁ¦. PHPµÄºÃ»ï°éÖ¸µÄ¾ÍÊÇLINUXºÍAPACHEÀ², LAMPÂï.
ÁíÍâ, ¼ÈÈ»ÊÇÄ£ÄâµÄ, ¾Í²»ÊÇÕæÕýµÄ¶àÏß³Ì. ÆäʵֻÊÇ¶à½ø³Ì. ½ø³ÌºÍÏß³ÌÊÇÁ½¸ö²»Í¬µÄ¸ÅÄî. ºÃÁË, ÒÔÏ·½·¨¶¼ÊÇ´ÓÍøÉÏÕÒÀ´µÄ.
1. ÀûÓÃLINUX²Ù×÷ϵͳ
<?php
for ($i=0;$i<10;$i++) {
echo $i;
sleep(5);
}
?>
ÉÏÃæ´æ³Étest.php, È»ºóдһ¶ÎSHELL´úÂë
#!/bin/bash
for i in 1 2 3 4 5 6 7 8 9 10
do
php -q test.php &
done
2. ÀûÓÃfork×Ó½ø³Ì(ÆäʵͬÑùÊÇÀûÓÃLINUX²Ù×÷ϵͳ)
<?php
declare(ticks=1);
$bWaitFlag = FALSE; /// ÊÇ·ñµÈ´ý½ø³Ì½áÊø
$intNum = 10; /// ½ø³Ì×ÜÊý
$pids = array(); /// ½ø³ÌPIDÊý×é
echo ("Startn");
for($i = 0; $i < $intNum; $i++) {
$pids[$i] = pcntl_fork();/// ²úÉú×Ó½ø³Ì£¬¶øÇÒ´Óµ±Ç°ÐÐ֮ϿªÊÔÔËÐдúÂ룬¶øÇÒ²»¼Ì³Ð¸¸½ø³ÌµÄÊý¾ÝÐÅÏ¢
if(!$pids[$i]) {
// ×Ó½ø³Ì½ø³Ì´úÂë¶Î_Start
$str="";
sleep(5+$i);
for ($j=0;$j<$i;$j++) {$str.="*";}
echo "$i -> " . time() . " $str n";
exit();
// ×Ó½ø³Ì½ø³Ì´úÂë¶Î_End
}
}
if ($bWaitFlag)
{
for($i = 0; $i < $intNum; $i++) {
pcntl_waitpid($pids[$i], $status, WUNTRACED);
echo "wait $i -> " . time() . "n";
}
}
echo ("Endn");
?>
3. ÀûÓÃWEB SERVER, PHP²»Ö§³Ö¶àÏß³Ì, APACHE¿ÉÊÇÖ§³ÖµÄ, ºÇºÇ.
¼ÙÉèÎÒÃÇÏÖÔÚÔËÐеÄÊÇa.phpÕâ¸öÎĵµ. µ«ÊÇÎÒÔÚ³ÌʽÖÐÓÖÇëÇóWEB·þÎñÆ÷ÔËÐÐÁíÒ»¸öb.php
ÄÇôÕâÁ½¸öÎĵµ½«ÊÇͬʱִÐеÄ.
<?php
function runThread()
{
$fp = fsockopen('localhost', 80, $errno, $errmsg);
fputs($fp, "GET /a.php?act=brnrn");
fclose($fp);
}
function a()
{
$fp = fopen('result_a.log', 'w');
fputs($fp, 'Set in ' . Date('h:i:s', time()) . (double)microtime() . "rn");
fclose($fp);
}
function b()
{
$fp = fopen('result_b.log', 'w');
fputs($fp, 'Set in ' . Date('h:i:s', time()) . (
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<?php
function square ($num)
{
return $num * $num;
}
echo square (4); // outputs '16'.
?>
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