Kritik :
i try to check before insert database if values exist in database row.
this is my code. i want to check in array values if have in database. if exist "kullanici" and "totoid" dont insert to database.
if($sonuc == 1) {
$arr[] = '(
"' . $mac->kullanici . '",
"5",
"' . $mac->totoid . '"
)';
}
if($sonuc == 2) {
$arr[] = '(
"' . $mac->kullanici . '",
"10",
"' . $mac->totoid . '"
)';
}
if($sonuc == 3) {
$arr[] = '(
"' . $mac->kullanici . '",
"15",
"' . $mac->totoid . '"
)';
}
if($sonuc == 4) {
$arr[] = '(
"' . $mac->kullanici . '",
"20",
"' . $mac->totoid . '"
)';
}
if($sonuc == 5) {
$arr[] = '(
"' . $mac->kullanici . '",
"25",
"' . $mac->totoid . '"
)';
}
}
$sql = $this->db->query("INSERT INTO kazananlar (kullanici, kazanci, totoid) VALUES " . implode(',', $arr));
GMB :
I would suggest using the insert... on duplicate key syntax. The upside of this technique is you can use a single query, so you do not have to worry about possible race conditions.
This works by first creating a unique constraint on columns kullanici and totoid:
create unique index idx_kazananlar on kazananlar(kullanici, totoid);
Then, you can do:
insert into kazananlar (kullanici, kazanci, totoid)
values (...)
on duplicate key update kullanici = values(kullanici)
The database checks if a row already exists with the same kullanici and totoid; if it does, then the on duplicate keys clause performs a no-op.
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