php多进程实验笔记
['id' => ['>=' => 672600],]]; $result = $pdo->count('Crawl_Receive_Task', $params); $pdo = null; return $result; } function selectCountList() { $pdo = PDO_MySQL::getInstance(); $conditions = array( 'fields' => 'id,url,info_path', 'where' => ['id' => ['>=' => 672600],] ); $result = $pdo->getAll('Crawl_Receive_Task', $conditions); $pdo = null; return $result; } function update($data, $id) { $pdo = PDO_MySQL::getInstance(); $where = array( 'where' => array( 'id' => $id ) ); $result = $pdo->update('Crawl_Receive_Task', $where, $data); $pdo = null; return $result; } $t = totalCount(); $list = selectCountList(); $start=0; $threads = 4; while($start<$t){ if($start == $t) break; for($i=$start;$i<$start+$threads;$i++){ $pids[$i] = pcntl_fork(); if($pids[$i]) { echo $pids[$i]."parent".PHP_EOL; } else if(!$pids[$i]) { echo getmypid()."--".$pids[$i]."--child".PHP_EOL; $result = Curl::request('GET',$list[$i]['info_path']); update(['add_time'=>date('Y-m-d H:i:s'),'test'=>$list[$i]['id']],$list[$i]['id']); echo $result."-----------------".PHP_EOL; exit(); } usleep(100); } for($i=$start;$i<$start+$threads;$i++){ pcntl_waitpid($pids[$i], $status, WUNTRACED); $status = pcntl_wexitstatus($status); echo "--------$status finished--------".PHP_EOL; } $start+=$threads; }
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