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Editorial Team
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Asked: 2026-06-13T04:25:05+00:00

I’m pretty new to php.. and this is probably a stupid mistake… but I

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I’m pretty new to php.. and this is probably a stupid mistake… but I have no idea what is going on. I’m trying to create a table in my database using php. I want to name the table after the username. I’m using the variable $tableusername. Here’s my code

$sql="SELECT * FROM userdata WHERE username='$username'";
$result=mysql_query($sql);

while ($row = mysql_fetch_assoc($result))
        {
            $tableusername = $row["username"];
        }

$create = "CREATE TABLE `".$tableusername."` ('
    . ' `ID` INT NOT NULL AUTO_INCREMENT PRIMARY KEY, '
    . ' `please` VARCHAR(50) NOT NULL, '
    . ' `make` VARCHAR(50) NOT NULL, '
    . ' `this` VARCHAR(50) NOT NULL, '
    . ' `work` VARCHAR(50) NOT NULL'
    . ' )'
    . ' ENGINE = myisam;";

mysql_query($create)


?>

<html>
<head>
</head>
<body>
You have successfully signed up. <?php echo $tableusername ?>
</body>
</html>

So- This creates a table named $tableusername. The variable doesn’t carry over. BUT- when I echo $tableusername – the variable carries over. I’m pretty new to this – so any help is appreciated.

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1 Answer

  1. Editorial Team

    Add this after your SQL querys – (It really helps and speeds up error correcting time) 

    or die("A MySQL error has occurred.<br />Error: (" . mysql_errno() . ") " . mysql_error());

    echos this in your instance:

    A MySQL error has occurred.
    Error: (1064) 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 ” . ‘ ID INT NOT NULL AUTO_INCREMENT PRIMARY KEY, ‘ . ‘ please VARCH’ at line 1

    This then indicates to me that the error regards “ & ‘.

    After changing the code to contain single quotes and executing it, there is now no echo. 

       <?php
    $tableusername = "philip";
    $create = "CREATE TABLE `".$tableusername."` ("
        . " `ID` INT NOT NULL AUTO_INCREMENT PRIMARY KEY, "
        . " `please` VARCHAR(50) NOT NULL, "
        . " `make` VARCHAR(50) NOT NULL, "
        . " `this` VARCHAR(50) NOT NULL, "
        . " `work` VARCHAR(50) NOT NULL"
        . " )"
        . " ENGINE = myisam;";

    mysql_query($create)or die("A MySQL error has occurred.<br />Error: (" . mysql_errno() . ") " . mysql_error());

    ?>

    Note: Please refer to the MySQLi extension when using SQL embedded in PHP. mysql_* is in a deprecation process.

    Hope this helps.

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