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                企業??AI智能體構建引擎,智能編排和調試,一鍵部署,支持知識庫和私有化部署方案 廣告
                [TOC] > [參考](https://juejin.im/entry/5b31aa1bf265da597f1c81c0) ## 安裝 `yum install strace` ## 實例 ### `strace 可執行文件` test.php ``` $file = "/var/log/data.log"; $fp = fopen($file, "a"); if ($fp) { echo "start\n"; foreach ($log as $v) { fwrite($fp, $v."\r\n"); } } fclose($fp); ``` `strace -o debug.log php test.php` 輸出 ``` lstat("/var/log/data.log", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 ... munmap(0x7f7aa7dfd000, 4096) = 0 close(0) = 0 ``` 腳本根本沒有運行`fwrite($fp, $v."\r\n");`這段代碼 ### `strace -p ?(pid) -F` 查看運行 pid 的情況 ``` > strace -p ?29785 -F -p 參數表示跟蹤進程 PID 號 -F 表示過程該進程調用的子進程(如 PHP 執行 exec 調用),這是非常重要的一個參數 ```
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