我有这个疑问在这里:返回真/假从MySQL阵列
function movement_performed_today($class_id, $client_id){
$class_id = (int)$class_id;
$client_id = (int)$client_id;
$query = mysql_query("SELECT COUNT(`movement`) FROM `completed_movements` WHERE `class_id` = '$class_id' AND `client_id` = '$client_id' AND `date` = CURDATE()");
$movement_performed = mysql_fetch_assoc($query);
print_r($movement_performed);
}
返回此:
Array (
[COUNT(`movement`)] => 0
)
Array (
[COUNT(`movement`)] => 0
)
这是正确的。现在我想要做这样的事情:
function movement_performed_today($class_id, $client_id){
$class_id = (int)$class_id;
$client_id = (int)$client_id;
$query = mysql_query("SELECT COUNT(`movement`) FROM `completed_movements` WHERE `class_id` = '$class_id' AND `client_id` = '$client_id' AND `date` = CURDATE()");
$movement_performed = mysql_fetch_assoc($query);
return (mysql_result($movement_performed['count'], 0) == 1) ? true : false;
}
所以,我可以叫while循环的内部这个功能,如果它返回0 /假它就会表单数据发布到数据库。有人可以帮忙吗?这里是Im试图执行此功能的while循环:
if (empty($_POST)=== false){
$i = 0;
while (isset($_POST["first_name"][$i])) {
$movement_data = array(
'user_id' => $session_user_id,
'class_id' => $class_id,
'class_name' => $class_name,
'client_id' => $_POST['client_id'][$i],
'first_name' => $_POST['first_name'][$i],
'last_name' => $_POST['last_name'][$i],
'nickname' => $_POST['nickname'][$i],
'order' => $_POST['order'][$i],
'movement' => $_POST['movement'][$i],
'rep_set_sec' => $_POST['rep_set_sec'][$i],
'rest' => $_POST['rest'][$i],
'date' => $today
);
$movement_performed = movement_performed_today($class_id, $_POST['client_id']);
foreach ($movement_performed as $performed){
if($performed == false){
completed_movement($movement_data);
} // if performed
} // foreach
$i++;
} // while
} // if empty
在这里插入大便笑话。尽管如此,应该着眼于强化数据库约束的唯一性。仍然可以执行SELECT COUNT检查,但确保在尝试插入数据库后正确处理任何竞争条件。你能解释一下“对于一个表单而不是数组”的意思吗? – ficuscr
解析脚本循环遍历表单中的行,并将每行数据插入到数据库中,每行数据表示数据库中新数据行。所以当我做检查时,我需要看看每行中的$ _POST ['movement']是否已经发布到数据库中,如果是这样,请转到数组中的下一行。那有意义吗? – Colbyd
那么做同样的事情,但在一个循环?只需要在每次插入否之前在循环中调用'movement_performed_today'? – ficuscr