我想創(chuàng)建一個函數(shù)來刪除所有狀態(tài)為待處理的作業(yè)。我想每 24 小時運行一次。我正在考慮增加睡眠或其他東西。有人可以建議怎么做嗎？功能 function find_by_job_status($status) { global $db; // create a prepared statement $sql = "SELECT * FROM jobs WHERE status = ?"; $stmt = mysqli_stmt_init($db); mysqli_stmt_prepare($stmt, $sql); // bind parameters for placeholders mysqli_stmt_bind_param($stmt, "s", $status); // execute the query mysqli_stmt_execute($stmt); return mysqli_stmt_get_result($stmt); // close statement mysqli_stmt_close($stmt); } function delete_pending_jobs() { $jobs = find_by_job_status('pending'); while ($row = mysqli_fetch_assoc($$jobs)) { // Delete All Pending jobs // Wait for 24 hours // Loop again } }
1 回答
不負相思意
TA貢獻1777條經(jīng)驗 獲得超10個贊
最好的辦法execute every 24 hours is cronjob。在這里您可以了解如何設置這些：如何使用 PHP 創(chuàng)建 cron 作業(yè)？
你的代碼應該是這樣的。在第一個函數(shù)中，我首先存儲了結果，因為一旦返回某些內(nèi)容，其余代碼將不會執(zhí)行。
function find_by_job_status($status) {
global $db;
// create a prepared statement
$sql = "SELECT * FROM jobs WHERE status = ?";
$stmt = mysqli_stmt_init($db);
mysqli_stmt_prepare($stmt, $sql);
// bind parameters for placeholders
mysqli_stmt_bind_param($stmt, "s", $status);
// execute the query
mysqli_stmt_execute($stmt);
// store the result in var
$result = mysqli_stmt_get_result($stmt);
// close statement
mysqli_stmt_close($stmt);
// return result
return $result;
}
function delete_pending_jobs() {
global $db;
$jobs = find_by_job_status('pending');
while ($row = mysqli_fetch_assoc($jobs)) {
$stmt = mysqli_stmt_init($db);
// create a prepared statement
$sql = "DELETE FROM jobs WHERE id = ?";
mysqli_stmt_prepare($stmt, $sql);
// bind parameters for placeholders
mysqli_stmt_bind_param($stmt, "s", $row['id']);
// execute the query
mysqli_stmt_execute($stmt);
// close statement
mysqli_stmt_close($stmt);
}
}
我更愿意將delete_pending_jobs函數(shù)外包給由 cronjob 執(zhí)行的新文件。
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