How do i Insert Multiple records in one database trip using PDO?

问题

i have a table called propAmenities which holds two column amenity_id and property_id basically the table holds the foreign keys.

now i have to generate a PDO query using named placeholder for the below statement.

INSERT INTO propAmenities (amenity_id, property_id) VALUES (1, 1), (2, 1), (3, 1)

i tried using the following syntax but i am not sure if this will work.

$sth->$this->dbh->prepare('INSERT INTO 
                           propAmenities 
                           (amenity_id, property_id) 
                           VALUES 
                           (:amenity_id, :property_id), 
                           (:amenity_id, :property_id), 
                           (:amenity_id, :property_id)');

and for the above query i am not sure how do i use PDO's bindParam() ? how do i handle this situation Using PDO? am i using the wrong PDO's Placeholders?

回答1:

You can give the placeholders whatever names you want so something like this for your SQL:

INSERT INTO propAmenities 
(amenity_id, property_id) 
VALUES 
(:amenity_id1, :property_id1), 
(:amenity_id2, :property_id2), 
(:amenity_id3, :property_id3)

And then:

$stmt->bindParam(':amenity_id1',  1);
$stmt->bindParam(':property_id1', 1);
$stmt->bindParam(':amenity_id2',  2);
$stmt->bindParam(':property_id2', 1);
$stmt->bindParam(':amenity_id3',  3);
$stmt->bindParam(':property_id3', 1);

Or, of course, build the appropriate array for execute. In this case, non-named placeholders might be easier to work with though:

INSERT INTO propAmenities 
(amenity_id, property_id) 
VALUES 
(?, ?),
(?, ?),
(?, ?)

And then you can loop through your values and call execute with the appropriate array:

$stmt->execute(array(1, 1, 2, 1, 3, 1));

回答2:

It is much simpler to not use a prepared query here, simply generate your query string using some implode()s and execute it. Of course, make sure your parameters are properly quoted (since they're ints, applying intval() is enough).

来源：https://stackoverflow.com/questions/6235669/how-do-i-insert-multiple-records-in-one-database-trip-using-pdo

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php

mysql

pdo