function writeData($path, $mode, $data){ $fp = fopen($path, $mode); $retries = 0; $max_retries = 100; do { if ($retries > 0) { usleep(rand(1, 10000)); } $retries += 1; }while (!flock($fp, LOCK_EX) and $retries <= $max_retries); if ($retries == $max_retries) { return false; } fwrite($fp, "$data\n"); flock($fp, LOCK_UN); fclose($fp); return true; }function writeData($path, $mode, $data){ $fp =
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腾讯PHP面试题（二）
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