Multiple mysql INSERT statements in one query php [duplicate] - php

Question

This question already has answers here:
Insert multiple rows with one query MySQL
(5 answers)
Closed 2 years ago.
Is this legal?
$string1= "INSERT INTO....;";
$string1 .= "INSERT INTO....;";
$string1 .= "INSERT INTO....;";
mysql_query($string1) or die(mysql_error());

Answer 1

For what it's worth, and depending on if you're inserting the same data into
the same tables, it's much better to insert multiple values with the one insert
e.g.
INSERT INTO a VALUES (1,23),(2,34),(4,33);
INSERT INTO a VALUES (8,26),(6,29);

Answer 2

No, mysql_query() only allows one query at a time.
You can insert multiple rows like this:
INSERT INTO table (col1, col2)
VALUES (1, 2), (3, 4), (5, 6)

Answer 3

From MySQL dev support MySQL dev forum
INSERT INTO table (artist, album, track, length)
VALUES
("$artist", "$album", "$track1", "$length1"),
("$artist", "$album", "$track2", "$length2"),
("$artist", "$album", "$track3", "$length3"),
("$artist", "$album", "$track4", "$length4"),
("$artist", "$album", "$track5", "$length5");
So insert goes as normal as always:
naming first the table name where we want to insert new row,
followed by naming column names in round brackets (Note: Not needed if you want to insert ALL columns),
followed by VALUES key name and then in round brackets comes the values that you want to insert for new ROW in the above table,
followed by COMMA and then another pair of round brackets with new values for new row in the mentioned table above
and this repeats N-times as long you have the data to insert.
Happy inserting multiple values with ONE insert statement. :)

Answer 4

Copy/paste example within a function and a loop (suppose $ids is an array)
public function duplicateItem($ids)
{
if (isset($ids[0])){ //at least one item
$sqlQuery = "INSERT INTO items (item_id, content) VALUES ";
for($i=0; $i<count($ids); $i++) {
if ($i == count($ids)-1){
$sqlQuery .= "(".$ids[$i][0].", '".$ids[$i][1]."');";
}else{
$sqlQuery .= "(".$ids[$i][0].", '".$ids[$i][1]."'),";
}
}
mysql_query($sqlQuery) or die('Error, insert query failed: '.mysql_error());
}
}

Answer 5

In general, that's valid SQL since each statement ends with a semicolon, but PHP doesn't allow you to send more than one query at a time, in order to protect against SQL injection attacks that might exploit a poorly written script.
You can still use a syntax like:
INSERT INTO foo VALUES ('a1', 'b1'), ('a2', 'b2');

Answer 6

INSERT INTO table (a,b) VALUES (1,2), (2,3), (3,4);

Answer 7

No. They are separate queries, and must be called as such.

Answer 8

// if $data is an array
$sqlQuery ="INSERT INTO tableName(col1, col2) VALUES ";
for($i=0; $i<count($data); $i++) {
$sqlQuery .="(".$data[$i][0].", '".$data[$i][1]."'),";
}
$sqlQuery = rtrim($sqlQuery, ','); // Remove last comma
mysql_query($sqlQuery) or die('Error, insert query failed: '.mysql_error());