Connection failed: SQLSTATE[42000]: Syntax error or access violation [duplicate] - php

Question

This question already has an answer here:
Syntax error due to using a reserved word as a table or column name in MySQL
(1 answer)
Closed 5 years ago.
Do you have any idea whats wrong with my code? I can't really figure it out.
Connection failed: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'VARCHAR(50) NOT NULL, url TEXT(65535) NOT NULL, ip VARCHAR(150) NOT NULL)' at line 3
<?php
$host = "localhost";
$dbname = "nope";
$username = "nope";
$password = "nope";
if(isset($_GET["s"])){
try{
$pdo = new PDO("mysql:host=".$host.";dbname=".$dbname,$username,$password);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$table = "links";
$sql ="CREATE TABLE IF NOT EXISTS $table(
ID INT(11) AUTO_INCREMENT PRIMARY KEY,
key VARCHAR(50) NOT NULL,
url TEXT(65535) NOT NULL,
ip VARCHAR(150) NOT NULL)";
$pdo->exec($sql);
} catch (PDOException $e) {
echo 'Connection failed: ' . $e->getMessage();
}
/*$statement = $pdo->prepare("select url from $table where key = :key");
$statement->execute(array(':key' => $_GET["s"]));
$result = $statement->fetch();
echo $result;*/
}
else{
echo "error";
}
?>

Answer 1

Your column name key is a reserved keyword in mysql
The solution is to quote the column name in backticks
`key` VARCHAR(50) NOT NULL,
or just change the name of the column to whatever you like which is not a reserved word.
my_key VARCHAR(50) NOT NULL,
So your statement should be
$sql ="CREATE TABLE IF NOT EXISTS $table(
ID INT(11) AUTO_INCREMENT PRIMARY KEY,
`key` VARCHAR(50) NOT NULL,
url TEXT(65535) NOT NULL,
ip VARCHAR(150) NOT NULL)";
or
$sql ="CREATE TABLE IF NOT EXISTS $table(
ID INT(11) AUTO_INCREMENT PRIMARY KEY,
table_key VARCHAR(50) NOT NULL,
url TEXT(65535) NOT NULL,
ip VARCHAR(150) NOT NULL)";

Answer 2

Try the following query instead:
CREATE TABLE IF NOT EXISTS $table(
`ID` INT(11) AUTO_INCREMENT PRIMARY KEY,
`key` VARCHAR(50) NOT NULL,
`url` TEXT NOT NULL,
`ip` VARCHAR(150) NOT NULL)
Key is a Reserved Word in MariaDB. And thus needs to be enclosed in ``. And there is no need to define length for type TEXT