将父表中的外键值插入子表

Question

我有两个表Loan（父表）和Receipt（子表）我想要做的是当在父表中插入一行（loan）时我希望外键（app_file_id）也插入到儿童桌

$values = $_POST;
foreach ($values as &$value) {
    $value = mysql_real_escape_string($value);
}

$sql1="INSERT INTO loan (loan_id,officer_department,app_file_id)
VALUES ('','$values[officer_department]','$values[app_file_id]')";

$result = mysql_query($sql1);
if (!$result) {
    die('Invalid query: ' . mysql_error());
}

我已设法在父表中插入数据，但子表（收据）和外键（app_file_id），如何将其插入到收据表中

Answer 1

试试这个

$sql1="INSERT INTO loan (loan_id,officer_department,app_file_id)
VALUES ('','$values[officer_department]','$values[app_file_id]')";

$result = mysql_query($sql1);

if (!$result) {
            die('Invalid query: ' . mysql_error());
}

@mysql_query("INSERT INTO receipt (app_file_id) VALUES ('{$values['app_file_id']}')");