I wanna create a sqlite3 database in PHP but I get an error from PHP
Error
Fatal error: Uncaught Exception: Unable to open database: unable to open database file
Codes
$database = new SQLite3('myDatabase.db');
Note: My PHP version is 7.1
Note: My database name is not duplicate and sqlite3 must make it
Thanks for attention
Your code is correct and should create the database file if it doesn't exist.
Most probably it's a user right issue, check the permissions of the folder where you are trying to create the file in.
Check the directory permissions. The folder containing the SQLite file must be writable by the appropriate user.
Related
I have figured out a strange problem with using PHP SQLite3 with Windows.
I have 2 different virtuell windows server. On the first one the SQLite3 database is located and on the second one the WEB-Server and PHP.
In the same PHP script there are different functions which require access to the SQLite3 database. These is the subroutine, which is use to open the SQLite database.
class SQLite extends SQLite3 {
function __construct() {
$this->open('//COUNTRYR/CountryR_driveD/Radio/database.mldb');
}
}
The strange thing is, that the call $db1 = new SQLite() is working for one function in this script but not for another. For the second function I always get the error message Fatal error: Uncaught Exception: Unable to open database: unable to open database file in ....
It took me some time, to figure out the difference.
The function which was able to open the database was called via php xyz.php --mode='abc' --user='test' --pass='1234' and the second function was called via a browser.
So the difference can only be different access rights in both cases.
For the PHP call of the function, the 'IUSR' has access rights for the database.
Due to the fact, that the server with the database is no Web server, I can not enable 'IIS_IUSRS' access rights for the database and I also don't want to give 'IIS_IUSRS' access rights to the database for security reasons.
Is there any other way to solve this problem?
Is 'IIS_IUSRS' the user which requires access for the WEB browser?
I have a problem with an SQLite3 database where I can access it either with the sqlite3 command or with the PHPStorm built-in database manager but the application I am working on doesn't find the tables in it. It correctly connects to the database it seems.
This line of PHP causes the PDOException:
$query = "SELECT * FROM users";
$results = self::$app->db->query($query);
And the exception is simply SQLSTATE[HY000]: General error: 1 no such table: users. I am using the Slim framework, by the way.
I don't really know what to do as I am new to Slim as well as SQLite.
Thank you for your help :-)
The database that you have opened does not contain this table.
SQLite will happily open any file name; if it does not exist, it will create a new, empty database.
Check your database file name.
Thanks to the accepted answer that pointed me in the right direction.
I am using Symfony 4.1 and realized that the base directory for Symfony is the public directory (should be app in 2.8) so to open my database I had to do :
# file: PROJECT_ROOT/.env
DATABASE_URL="sqlite:///../my_super.db"
But then, every call to doctrine in a command (like doctrine:schema:update) must be called in a direct subfolder of the project, like so:
PROJECT_ROOT/bin$ ./console doctrine:schema:update --dump-sql
I am trying to use PHP's COM interface to query a database and create pivot tables from the data in an Excel Workbook.
I have configured the DCOM settings on the local machine to grant the user Local Access, Local Launch, and Local Activation privileges as well as Full Control of Configuration Permissions. I have also tried all three Identity settings.
Here is the code I am using:
<?php
$application = new COM("Excel.Application") or die("Unable to load Excel.");
$workbook = $application->Workbooks;
$workbook = $workbook->Add();
$sheet = $workbook->Worksheets(1);
$sheet->Activate();
$application->Quit();
?>
This is the error I am getting:
PHP Fatal error: Uncaught exception 'com_exception' with message 'Unable to lookup `Workbooks': Access is denied.
This is different than error I was getting before which told me that I didn't have access to the Excel COM object. Setting the permissions fixed that.
Environment is:
Windows Server 2012 R2
Excel 2010 (64-bit)
PHP 5.5.9 (64-bit)
I never was able to solve this, so we had to come up with a different solution and it actually is more stable and performs better. Hope it helps anyone else that may run into the same issue.
Our database is MySQL (but this should be possible with most databases), so we moved our query into its own script and used the mysql client to write the results directly to a file.
We then created an excel template with a data connection to the file and used the connection as the data source for the pivot tables.
Lastly we wrote a short vbscript to open the template, refresh the pivot tables, then and save the file as a new copy.
This had the added benefit of allowing us to make stylistic changes using Excel's interface, which was much faster than doing it programmatically.
Where is mistake? I try to connect to database from php script. I am getting the error that database is unknown. Database for sure exists, i can see this from PhpMyAdmin.
I use XAMPP v3.2.1 with mysqlnd 5.0.11-dev and php v5.5.9.
Script file debug1.php in folder c:\xampp\htdocs:
$conn=mysqli_connect( 'localhost', 'root', '', $vdbname ) or die( "cannot connect to server".mysqli_error() );
When i run this file from browser windows using url: "localhost/debug1.php" i am getting error message:
Warning: mysqli_connect(): (HY000/1049): Unknown database 'gintare_calendar' in C:\xampp\htdocs\debug1DBconn.php on line 5
You may want to look for whitespace in database name. From phpMyAdmin go to database Operation sections and see if white space has been added in front or after database name.
This means the database you want to connect to is not called "gintare_calendar".
Open your MySQL administration package (phpmyadmin) and verify the actual name of the database you want to connect to.
I am sorry, i forget that i reinstalled XAMPP. It is true. There is no database. I have to create the database, import previous tables and than everything works again.
UPDATED
My latest code as follows:
$file ="sqlite:C:\New folder\\test.db";
echo $file;
$handle = new PDO($file) or die("Could not open database");
Error
sqlite:C:\New folder est.db
Fatal error: Uncaught exception 'PDOException' with message 'could not find driver' in C:\inetpub\wwwroot\NetBeans\PHP&SQLITE.php:20 Stack trace: #0 C:\inetpub\wwwroot\NetBeans\PHP&SQLITE.php(20): PDO->__construct('sqlite:C:\New f...') #1 {main} thrown in C:\inetpub\wwwroot\NetBeans\PHP&SQLITE.php on line 20
I'm trying to use PDO driver however the error keep prompting me saying cant find the driver when it's in my extension php folder. I'm at my wits now.
I'm using SQLITE version 3 and PHP version 5.4.3.
I already placed the database file inside my r/w folder but it Fatal error: Call to undefined function sqlite_open(). I already researched on the web for alot of sources but the my directory path still returns some strange error (Sorry if i'm too noob, first time learning).
My code as follows:
$db ="C:\New folder\test.db";
Test to print my directory path of the database.
echo $db;
$handle = sqlite_open($db); //or die("Could not open database");
Debug result
C:\New folder est.db
Fatal error: Call to undefined function sqlite_open() in C:\inetpub\wwwroot\NetBeans\PHP&SQLITE.php on line 18 which is "$handle = sqlite_open($db); //or die("Could not open database");"
Kindly advise where did I do wrong? The path I specified was correct but when I print out, it shows wrong path.
Thanks
one problem you have is that you are escaping (inadvertently) some of your path characters.
As your var_dump shows.
C:\New folder est.db
change your $db variable definition to
$db ="C:\New folder\\test.db";
or just put path in single quotes so PHP won't try and parse the string
$db ='C:\New folder\test.db';
and believe it or not in most cases unix paths will work:
$db ="C:/New folder/test.db";
as for the remainder of your problem, you need to make sure you have sqlite 2 enabled. View your php info and check to see if you a section like:
SQLite
SQLite support enabled
PECL Module version 2.0-dev $Id: sqlite.c 306939 2011-01-01 02:19:59Z felipe $
SQLite Library 2.8.17
SQLite Encoding iso8859
if not, in your php.ini make sure the line
extension=php_sqlite.dll
is uncommented and present (and the .dll exists in your extension folder).
However most people will recommend that you use the PDO driver for sqlite (and for any other database) as it will provide a more consistent paradigm across the different databases (you can use the same code with most databases).
[edit]
I found some comments in the php manual that may shed some light on your issues.
It seems that the directory that contains your sqlite database must be
writeable by the web server. Making just the file writeable won't
work.
and
Don't forget "extension=php_pdo_sqlite.dll" has to be enabled in
php.ini (if you use xampp is will be disabled by default) .