我有一个简单的数据库类,其中包含这个方法
function __construct($host, $user, $pass, $db) {
$this->link = pg_connect("host=$host port=5432 dbname=$db user=$user password=$pass") or $this->error();
}
public function run($sql, $args = null) {
if(!$args)
$this->query = pg_query($sql);
else {
$v = md5(uniqid(mt_rand(), true));
$this->query = pg_prepare($v, $sql);
$this->query = pg_execute($v, $args);
}
return $this;
}
使用这个方法,我可以在不使用预处理语句的情况下执行以下查询,并且它能够完美地工作。
$db->run("
INSERT INTO userExercise (userid, exerciseid, date, sets)
VALUES ($user->id, $exerciseid, '$date', '$sets')
ON CONFLICT (userid, date, exerciseid)
DO UPDATE SET sets = '$sets'
RETURNING LASTVAL()"
);
然而,当我执行预处理操作时,出现错误:“ERROR: prepared statement "41982c47c3c84749552cd9808ad03422" does not exist”。
$db->run("
INSERT INTO userExercise (userid, exerciseid, date, sets)
VALUES ($1, $2, $3 $4)
ON CONFLICT (userid, date, exerciseid)
DO UPDATE SET sets = $4
RETURNING LASTVAL()",
[$user->id, $exerciseid, $date, $sets]
);
使用md5
生成41982c47c3c84749552cd9808ad03422
作为唯一名称。问题似乎来自于ON CONFLICT
。如何解决?
$v = "abc"
,它能工作吗? - Giacomo Scarpino