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PHP 5.3 以上版本,使用pthreads PHP扩展,可以使PHP真正地支持多线程。多线程在处理重复性的循环任务,能够大大缩短程序执行时间。 cd /Data/tgz/php-5.5.1
./configure --prefix=/Data/apps/php --with-config-file-path=/Data/apps/php/etc --with-mysql=/Data/apps/mysql --with-mysqli=/Data/apps/mysql/bin/mysql_config --with-iconv-dir --with-freetype-dir=/Data/apps/libs --with-jpeg-dir=/Data/apps/libs --with-png-dir=/Data/apps/libs --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --enable-mbregex --enable-fpm --enable-mbstring --with-mcrypt=/Data/apps/libs --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --enable-opcache --with-pdo-mysql --enable-maintainer-zts make clean make make install unzip pthreads-master.zip cd pthreads-master /Data/apps/php/bin/phpize ./configure --with-php-config=/Data/apps/php/bin/php-config make make install
vi /Data/apps/php/etc/php.ini
extension = "pthreads.so"
1 <?php 2 class test_thread_run extends Thread 3 { 4 public $url; 5 public $data; 6 7 public function __construct($url) 8 { 9 $this->url = $url; 10 } 11 12 public function run() 13 { 14 if(($url = $this->url)) 15 { 16 $this->data = model_http_curl_get($url); 17 } 18 } 19 } 20 21 function model_thread_result_get($urls_array) 22 { 23 foreach ($urls_array as $key => $value) 24 { 25 $thread_array[$key] = new test_thread_run($value["url"]); 26 $thread_array[$key]->start(); 27 } 28 29 foreach ($thread_array as $thread_array_key => $thread_array_value) 30 { 31 while($thread_array[$thread_array_key]->isRunning()) 32 { 33 usleep(10); 34 } 35 if($thread_array[$thread_array_key]->join()) 36 { 37 $variable_data[$thread_array_key] = $thread_array[$thread_array_key]->data; 38 } 39 } 40 return $variable_data; 41 } 42 43 function model_http_curl_get($url,$userAgent="") 44 { 45 $userAgent = $userAgent ? $userAgent : 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2)'; 46 $curl = curl_init(); 47 curl_setopt($curl, CURLOPT_URL, $url); 48 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); 49 curl_setopt($curl, CURLOPT_TIMEOUT, 5); 50 curl_setopt($curl, CURLOPT_USERAGENT, $userAgent); 51 $result = curl_exec($curl); 52 curl_close($curl); 53 return $result; 54 } 55 56 for ($i=0; $i < 100; $i++) 57 { 58 $urls_array[] = array("name" => "baidu", "url" => "http://www.baidu.com/s?wd=".mt_rand(10000,20000)); 59 } 60 61 $t = microtime(true); 62 $result = model_thread_result_get($urls_array); 63 $e = microtime(true); 64 echo "多线程:".($e-$t)."\n"; 65 66 $t = microtime(true); 67 foreach ($urls_array as $key => $value) 68 { 69 $result_new[$key] = model_http_curl_get($value["url"]); 70 } 71 $e = microtime(true); 72 echo "For循环:".($e-$t)."\n"; 73 ?>
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