Description
resource
sqlite_open ( string filename [, int mode [, string &error_message]])
Returns a resource (database handle) on success, FALSE on error.
The filename parameter is the name of the
database. It can be a relative or absolute path to the file that sqlite
will use to store your data. If the file does not exist, sqlite will
attempt to create it. You MUST have write
permissions to the file if you want to insert data or modify the database
schema.
The mode parameter specifies the mode of the file and is
intended to be used to open the database in read-only mode.
Presently, this parameter is ignored by the sqlite library. The default
value for mode is the octal value 0666 and this is the
recommended value to use if you need access to the
errmessage parameter.
errmessage is passed by reference and is set to
hold a descriptive error message explaining why the database could not be
opened if there was an error.
Ejemplo 1. sqlite_open() example
<?php
if ($db = sqlite_open('mysqlitedb', 0666, $sqliteerror)) {
sqlite_query($db, 'CREATE TABLE foo (bar varchar(10))');
sqlite_query($db, "INSERT INTO foo VALUES ('fnord')");
$result = sqlite_query($db, 'select bar from foo');
var_dump(sqlite_fetch_array($result));
} else {
die($sqliteerror);
}
?>
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Sugerencia:
On Unix platforms, SQLite is sensitive to scripts that use the fork() system call. If you
do have such a script, it is recommended that you close the handle prior
to forking and then re-open it in the child and/or parent.
For more information on this issue, see
The C language interface
to the SQLite library in the section entitled
Multi-Threading And SQLite.
Sugerencia:
It is not recommended to work with SQLite databases mounted on NFS
partitions. Since NFS is notoriously bad when it comes to locking you
may find that you cannot even open the database at all, and if it
succeeds, the locking behaviour may be undefined.
Nota:
Starting with SQLite library version 2.8.2, you can specify
:memory: as the filename to
create a database that lives only in the memory of the computer.
This is useful mostly for temporary processing, as the in-memory
database will be destroyed when the process ends. It can also be
useful when coupled with the ATTACH DATABASE SQL
statement to load other databases and move and query data between them.
Nota:
SQLite is safe mode and open_basedir aware.
See also sqlite_popen(),
sqlite_close() and
sqlite_query().
