Insert multiple data with PHP [duplicate] - php

Question

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Multiple mysql INSERT statements in one query php [duplicate]
(8 answers)
Closed 3 years ago.
I'm trying to insert multiple data in one table, however I got an error that says:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'INSERT INTO author (firstname, lastname) VALUES ('Rasmus', 'Lerdorf')INSERT INT' at line 1
Here's the method:
$sql = "INSERT INTO author (firstname, lastname) VALUES ('Roal', 'Dahl')";
$sql .= "INSERT INTO author (firstname, lastname) VALUES ('Rasmus', 'Lerdorf')";
$sql .= "INSERT INTO author (firstname, lastname) VALUES ('Jane', 'Doe')";
Do I need to create a for loop for this? How could this work?

Answer 1

You can do this :
$sql = INSERT INTO author ( firstname, lastname) VALUES ('Roal', 'Dahl'), ('Rasmus', 'Lerdorf'), ('Jane', 'Doe');

Answer 2

Generally, mysqli and PDO cannot execute multiple statements in a single query. There are alternatives like mysqli_multi_query, but that is not really what you need.
Your query can have multiple rows added by appending extra sections after VALUES like so:
$sql = "INSERT INTO author (firstname, lastname) VALUES ";
$sql .= "('Roal', 'Dahl'), ('Rasmus', 'Lerdorf'), ('Jane', 'Doe')";

Answer 3

You can use two options:
mysqli_multi_query
$sql = "INSERT INTO author (firstname, lastname) VALUES ('Roal', 'Dahl');";
$sql .= "INSERT INTO author (firstname, lastname) VALUES ('Rasmus', 'Lerdorf');";
$sql .= "INSERT INTO author (firstname, lastname) VALUES ('Jane', 'Doe');";
if(!$mysqli->multi_query($sql)){
echo 'Error query:'. $mysqli->error . '.';
}else{
//do any operation
}
Or use one query like:
$sql = INSERT INTO author ( firstname, lastname) VALUES ('Roal', 'Dahl'), ('Rasmus', 'Lerdorf'), ('Jane', 'Doe');
if(!$mysqli->query($sql)){
echo 'Error query:'. $mysqli->error . '.';
}else{
//do any operation
}
Change $mysqli with your connection