php 多進程解決代碼常駐記憶體的問題

#!/bin/env php /** A example denoted muti-process application in php * @filename fork.php * @edit bbs.it-home.org * @version 1.0.0 */ /** 確保這個函數只能運行在SHELL中 */ if (substr(php_sapi_name(), 0, 3) !== 'cli') { die("This Programe can only be run in CLI mode"); } /** 關閉最大執行事件節流, 在CLI模式下, 這個語句其實不必要 */ set_time_limit(0); $pid = posix_getpid(); //取得主進程ID $user = posix_getlogin(); //取得使用者名稱 echo << USAGE: [command | expression] input php code to execute by fork a new process input quit to exit Shell Executor version 1.0.0 by laruence EOD; while (true) { $prompt = "\n{$user}$ "; $input = readline($prompt); readline_add_history($input); if ($input == 'quit') { break; } process_execute($input . ';'); } exit(0); function process_execute($input) { $pid = pcntl_fork(); //建立子進程 if ($pid == 0) {//子進程 $pid = posix_getpid(); echo "* Process {$pid} was created, and Executed:\n\n"; eval($input); //解析命令 exit; } else {//主進程 $pid = pcntl_wait($status, WUNTRACED); //取得子進程結束狀態 if (pcntl_wifexited($status)) { echo "\n\n* Sub process: {$return['pid']} exited with {$status}"; } } } ?> 複製代碼 大家注意以上代碼中的注釋，可以協助大家理解，也是代碼的精粹所在哦。

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