PHP/MySQL; For loop to to insert rows only adds one - php

Question

I'm using a for loop to add a specific number of rows to the table Beds as placeholders. The code doesn't throw any error, but only the last numbered bed appears in the database. I.e.: if you try to add 10 beds, only bed 10 gets added.
Here is the for loop I am using:
$roomName = mysqli_real_escape_string($con, $_POST['roomName']);
$numberBeds = mysqli_real_escape_string($con, $_POST['numberBeds']);
for($x=1; $x <= $numberBeds; $x++) {
$sql = "INSERT INTO Beds (roomName, bedNumber, patientID) VALUES('$roomName','$x', NULL)";
}
And here is the accompanying table:
DROP TABLE IF EXISTS `ChildrensHospital`.`Beds` ;
CREATE TABLE IF NOT EXISTS `ChildrensHospital`.`Beds` (
`roomID` INT(20) NOT NULL AUTO_INCREMENT,
`bedNumber` INT(10) NOT NULL,
`patientID` INT(20) NULL,
PRIMARY KEY (`roomID`, `bedNumber`),
INDEX `fk_Beds_PatientPersonalInformation1_idx` (`patientID` ASC),
CONSTRAINT `fk_Beds_PatientPersonalInformation1`
FOREIGN KEY (`patientID`)
REFERENCES `ChildrensHospital`.`PatientPersonalInformation` (`patientID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
I'm not sure if it's a syntax error in my PHP code, or something about the table itself.
Any help would be appreciated.

Answer 1

The problem with your code is that you are not executing your query. Try it like this:
for($x=1; $x <= $numberBeds; $x++){
$sql = "INSERT INTO Beds (roomName, bedNumber, patientID) VALUES('$roomName','$x', NULL)";
mysqli_query($con,$sql);
}
I guess that you are only executing your query after the loop and thus, of course only the last query gets executed instead of each.