downloads | documentation | faq | getting help | mailing lists | licenses | wiki | reporting bugs | php.net sites | links | conferences | my php.net

search for in the

sqlite_array_query> <Constantes pré-définies
[edit] Last updated: Fri, 10 Feb 2012

view this page in

Fonctions SQLite

Classes pré-définies

SQLiteDatabase

Représente une base de données SQLite ouverte.

Constructeur

  • __construct : construit un nouvel objet SQLiteDatabase

Méthodes

  • query : exécute une requête
  • queryExec : exécute une requête de résultat
  • arrayQuery : exécute une requête et retourne les résultats dans un tableau
  • singleQuery : exécute une requête et retourne soit un tableau pour une seule colonne, soit la valeur de la première ligne
  • unbufferedQuery : exécute une requête non bufferisée
  • lastInsertRowid : retourne l'identifiant de la dernière ligne insérée
  • changes : retourne le nombre de lignes modifiées par la dernière requête
  • createAggregate : enregistre une UDF de groupement pour les requêtes SQLite
  • createFunction : enregistre une fonction utilisateur "classique" UDF pour SQLite
  • busyTimeout : configure ou désactive le délai d'attente d'une base SQLite occupée
  • lastErorr : retourne le dernier code erreur de la dernière erreur rencontrée
  • fetchColumnTypes : retourne un tableau de types de colonnes depuis une table particulière

SQLiteResult

Représente un jeu de résultats SQLite bufferisé.

Méthodes

  • fetch : récupère la ligne suivante depuis un jeu de résultats en tant que tableau
  • fetchObject : récupère la ligne suivante depuis un jeu de résultats en tant qu'objet
  • fetchSingle : récupère la première ligne depuis le jeu de résultats en tant que chaîne de caractères
  • fetchAll : récupère toutes les lignes depuis le jeu de résultats en tant que tableau de tableaux
  • column : récupère une colonne depuis la ligne courante du jeu de résultats
  • numFields : retourne le numéro du champ depuis un jeu de résultats
  • fieldName : retourne le nom d'un champ particulier depuis le jeu de résultats
  • current : récupère la ligne courante depuis le jeu de résultat en tant que tableau
  • key : retourne l'index de la ligne courante
  • next : déplace le pointeur sur le numéro de ligne suivante
  • valid : retourne si oui ou non il reste des lignes de disponibles
  • rewind : déplace le pointeur sur le numéro de la première ligne d'un jeu de résultats
  • prev : déplace le pointeur sur le numéro de ligne précédent du jeu de résultats
  • hasPrev : retourne si oui ou non une ligne précédente est disponible
  • numRows : retourne le nombre de lignes dans le jeu de résultats
  • seek : déplace le pointeur vers un numéro de ligne précis

SQLiteUnbuffered

Représente un jeu de résultats SQLite non-bufferisé. Les jeux de résultats non-bufferisés sont séquentiels, déplacement du pointeur uniquement vers le numéro suivant.

Méthodes

  • fetch : récupère la ligne suivante depuis un jeu de résultats en tant que tableau
  • fetchObject : récupère la ligne suivante depuis un jeu de résultats en tant qu'objet
  • fetchSingle : récupère la première colonne depuis un jeu de résultats en tant que chaîne de caractères
  • fetchAll : récupère toutes les lignes depuis le jeu de résultats en tant que tableau de tableaux
  • column : récupère une colonne depuis la ligne courante d'un jeu de résultats
  • numFields : retourne le nombre de champs dans le jeu de résultats
  • fieldName : retourne le nom d'un champ en particulier depuis le jeu de résultats
  • current : récupère la ligne courante depuis le jeu de résultats en tant que tableau
  • next: déplace le pointeur vers un numéro de ligne suivant
  • valid : retourne si oui ou non il reste des lignes de disponibles

Sommaire



sqlite_array_query> <Constantes pré-définies
[edit] Last updated: Fri, 10 Feb 2012
 
add a note add a note User Contributed Notes Fonctions SQLite
CraquePipe 16-Sep-2011 07:54
The SQLite manual mentions that queries are done in a case-sensitive way, this means your query must be the correct case. It also mentions that using the "LIKE" operator will do a case-insensitive selection. This is true, but this also introduces wildcard symbols which a user could enter without getting filtered by the SQLite escape function. I'm somewhat new to SQL and I didn't think of doing this before, even after looking for a decent way to do case-insensitive queries.

For case-insensitive queries, simply use the built in "lower" function.
<?php
// ...
$name = 'bARbarA';
$rows = $db->arrayQuery('select * from blah where lower(name) = lower(\''.sqlite_escape_string($name).'\');');
// $rows might contain an entry for "Barbara" now.
?>
iphone at kkk ccc sss dot gr 06-Dec-2009 11:35
a simplier way to find out if a table exists:

<?php
$db=sqlite_open('mydb.sqlite', 0666, $sqliteerror);
$query = sqlite_query($db, "SELECT name FROM sqlite_master WHERE type='table' and name='the_table_Im_looking_for'");
$totaltables = sqlite_num_rows($query);
    if ($totaltables<1){
/* table does not exist...create it or do something... */
}
else{
/* table exists...don't create again , do something else */
}
?>
vincent at tigroux dot net 10-Oct-2006 05:19
on win 32

the error "malformed database schema - unable to open a temporary database file for storing temporary tables" may happen if the temp and tmp env vars are typed like this : %WINDIR/Temp

Replace by C:/Windows/Temp and the error will disappear.
papafox888 at hotmail dot com 01-Jun-2006 11:05
If you get an error message:

     Warning: sqlite_open() [function.sqlite-open]: file is encrypted or is not a database

then most probably your code is accessing a SQLite3 database.

sqlite_open() only supports SQLite2.  Use PDO to access SQLite3.
Egon at example dot com 21-Feb-2006 06:15
<$php
public function set_by_db_with_join_to_users_department($col, $foo){
    $list = "da.ROWID, da.dept_id, da.script, da.action, da.description, ud.name";
    $query = "SELECT $list FROM dept_access AS da, users_department AS ud
        WHERE da.dept_id = ud.ROWID
        AND da.$col = '$foo';";

    $db = new SQLiteDatabase (dept_access::db_path, 0666, &$error)
        or die("Failed: $error");
    $db->queryExec("ATTACH DATABASE '".dept_access::db_users_path."' AS users");
    $row = $db->arrayQuery($query, SQLITE_ASSOC);
    unset($db);

echo $query."\n";
echo var_dump($row);
    $this->ROWID = $row[0]['da.ROWID'];
    $this->dept_id = $row[0]['da.dept_id'];
    $this->dept_name = $row[0]['ud.name'];
    $this->script = $row[0]['da.script'];
    $this->action = $row[0]['da.action'];
    $this->description = $row[0]['da.description'];
}
?>

For ATTACH DATABASE to work you need to run it in a $db->queryExec(ATTACH DATABASE...); before using $db->arrayQuery. This is most likly the case with other OO methods to. This on stumped me for a while.
heinemann.juergen AT t-online.de 11-Nov-2005 10:53
Simple Example for using SQLite for small Buffering Clipboard ;)

<?php

// $Id: SQLiteClipboard.php5,v 1.1 2005/09/09 10:15:26 heinemann Exp $

/**
 * @callgraph
 * @class      SQLiteClipboard
 * @short      Simple Read/Write Clipboard Class
 * @version    0.0.1
 * @since      Fr Sep  9 08:14:45 CEST 2005
 * @code
   $sqlite = new SQLiteClipboard( MY_TEMP_DIR );
   if ( $sqlite->INSERTING = time() )
      var_dump( $sqlite->INSERTING );
   else
      echo "Nothing done!";
 * @endcode
 */

final class SQLiteClipboard
{
   private $SQL;
   private $DB = "Clipboard.sqlite";
   private $TB = "Clipboard";
   private $ID = "ID";
   private $PA = "PARAM";
   private $VA = "VAL";

   function __construct( $path )
   {
      $this->DB = chop( $path . "/" . $this->DB );
      $this->sql_init();
   }

   private function sql_init()
   {
      $this->SQL = new SQLiteDatabase( $this->DB, 0660 );
      if ( ! file_exists( $this->DB ) )
         die( "Permission Denied!" );

      $q = $this->SQL->query("PRAGMA table_info(" . $this->TB . ")");
      if ( $q->numRows() == 0 ) {
         $this->SQL->query( "CREATE TABLE " . $this->TB . " ( " . $this->ID . " INTEGER PRIMARY KEY, " . $this->PA . " CHAR(255), " . $this->VA . " CHAR(255) );" );
      }
   }

   private function sql_check( $p )
   {
      $o = null;
      $q = $this->SQL->query( "SELECT " . $this->ID . " FROM " . $this->TB . " WHERE ( " . $this->PA . "='$p' ) ORDER BY " . $this->ID . " LIMIT 1" );
      while( $q->valid() ) {
         $r = $q->current();
         return $r[$this->ID];
         $q->next();
      }
      return false;
   }

   public function __get( $p )
   {
      $q = $this->SQL->query( "SELECT " . $this->VA . " FROM " . $this->TB . " WHERE ( " . $this->PA . "='$p' ) ORDER BY " . $this->ID );
      while( $q->valid() ) {
            $r = $q->current();
            $o = $r[$this->VA];
            $q->next();
      }
      return $o;
   }

   public function __set( $p, $v )
   {
      if ( $this->sql_check( $p ) && ! empty( $v ) )
         return $this->SQL->query( "UPDATE " . $this->TB . " SET " . $this->VA . "='$v' WHERE ( " . $this->PA . "='$p' );" );
      elseif  ( ! $this->sql_check( $p ) && ! empty( $v ) )
         return $this->SQL->query( "INSERT INTO " . $this->TB . " ( " . $this->PA . ", " . $this->VA . " ) VALUES ('$p', '$v' );" );
      elseif  ( $this->sql_check( $p ) && empty( $v ) )
         return $this->SQL->query( "DELETE FROM " . $this->TB . " WHERE ( " . $this->PA . "='$p' );" );
      else
         return false;
   }

} // end Class

?>
31-Aug-2005 06:21
A function to check whether a table exists:

<?php
function sqlite_table_exists(&$sqlite, $table)
{
    $result = $sqlite->query("SELECT name FROM sqlite_master WHERE type='table' AND name='$table'");
    return $result->numRows() > 0;
}
?>
bens at effortlessis dot com 14-Jul-2005 01:37
Sqlite by default allows for foreign keys, but doesn't enforce them.

I found a nice article on how to enforce foreign keys  at http://www.justatheory.com/computers/databases/sqlite/

It would be nice if this could be handled with a wrapper class, so that adding foreign keys is done thru a wrapper API to automate the generation of the necessary enforcement triggers. If nobody's done this by the time I start coding against SqlLite/PHP5 in 6-12 months, I'll write one myself, possibly by modifying "jon at jenseng dot com"s alter table wrapper

Anyway, it's not PHP specific, but anybody using Sqlite really should know this!
Stephen Leaf 30-Jun-2005 07:58
I think it would be good to point out that currently (as of 5.0.4) this extention does not support SQLite 3 databases.
So if your getting an error message like:
Error: file is encrypted or is not a database
That is why.
bart at mediawave dot nl 18-Apr-2005 09:30
SELECT tablename.columnname FROM table;

will cause SQLite to return an array having tablename.field_name as the array index. (e.g. $result['tablename.field_name'])

To let SQLite return an array having only field_name as the array index (e.g. $result['field_name']) you can issue a 'PRAGMA short_column_names = 1' query:

sqlite_query($connection_id, 'PRAGMA short_column_names = 1');

This behaviour is more consistent with the other database extensions.

For a full list of all pragmas visit: http://sqlite.org/pragma.html
dotwho at NOSPAM dot mac dot com 09-Feb-2005 07:03
This may have been obvious to others, but I had a tough time finding the info.

The default location for the actual database file is the same location of the php doc that created the database. You can alter this behavior by specifying the full path in the creation call:

<php
$db = sqlite_open("/absolute/path/my_sqlite.db");
?>

Note that if you used the default location, the db file may be served up by the webserver if it is in a the http document path. This is obviously a security risk that should be avoided.

//Max
hunreal+php at gmail dot com 16-Jan-2005 09:42
Check the db/table if exist

$db_name='db';
$db=new SQLiteDatabase($db_name, 0666, $error);
if ($error) exit($error);
$q=$db->query("PRAGMA table_info(test)");
if ($q->numRows()!=2) {
    if (!@$db->queryexec("
        CREATE TABLE test (
            id INTEGER NOT NULL PRIMARY KEY,
            text VARCHAR ( 255 ) NOT NULL
            )")
    ) exit ("Create SQLite Database Error\n");
}
nicolas dot toniazzi at free dot fr 16-Nov-2004 08:24
The same in 3 lines.

<?php
function sqlite_table_exists($db,$mytable) {
  /* counts the tables that match the name given */
  $result = sqlite_query($db,"SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='$mytable'");

  /* casts into integer */
  $count = intval(sqlite_fetch_single($result));

  /* returns true or false */
  return $count > 0;
}
?>
alexs at alphacomolex dot info 28-Oct-2004 05:41
the OO version.
<?php
function sqlite_table_exists($db,$mytable) {
    // ask the database kindly what tables is has.
    $result = $db->query("SELECT name FROM sqlite_master WHERE type='table'");
    $tables = $result->fetchAll();
    // if there's no items in the array then our taget is not going to exists.
    if (count($tables) == 0) {
        return FALSE ;
    }
    // loop over the tables to see if there's a table we're looking for.
    foreach ($tables as $table) {
        if ($table['name'] == $mytable) {
            return(TRUE);
        }
    }   
    // there was no such table, informe the user the bad news.
    return(FALSE);
}
?>
artooro at gmail dot com 21-Oct-2004 08:26
If you need to check if a table exists, you can use a function like this:
<?php
//Returns TRUE if table exists and FALSE otherwise
//  $mytable = table you want to check for

function sqlite_table_exists($mytable) {
$db = sqlite_open('mydb.sqlite', 0666, $sqliteerror);
    $query = sqlite_query($db, "SELECT name FROM sqlite_master WHERE type='table'");
    $tables = sqlite_fetch_array($query);
    if ($tables != '') {
        foreach ($tables as $table) {
            if ($table == $mytable) {
                return("TRUE");
            }
            else {
                return("FALSE");
            }
        }
    }
    else {
        return("FALSE");
    }
}
?>

A function like this could be used to create the table if it's not already created, etc.
j-pieper at NOSPAM dot web dot de 19-Oct-2004 05:18
If you want to create a table in your database which should have an integer primary key, you cannot declare the row like this:

id int(16) primary key
or
id integer(16) primary key

When you declare it like this it could be that the id isn't auto increment. You have to declare it like this:

id integer primary key
filip at filipdewaard dot com 10-Sep-2004 01:39
I've written a short article about the (lack of) use of SQLite in-memory databases: http://www.filipdewaard.com/21_SQLite_inmemory_databases.html . Hopefully it will help somebody out there ;)
philip 08-Aug-2004 04:59
SQLite tutorials:
 * http://www.zend.com/php5/articles/php5-sqlite.php
 * http://www.zend.com/php5/abs/php101-9.php
 * http://www.oreilly.com/catalog/upgradephp5/chapter/ch04.pdf
jon at jenseng dot com 20-Jul-2004 04:50
Since SQLite doesn't support ALTER TABLE statements or renaming tables, modifying an existing table is a bit cumbersome. You have to:

1. create a temporary table
2. copy the original table into the temporary table
3. delete the original
4. recreate the original with new column definitions
5. copy the contents back
6. delete the temporary table

As this is rather unwieldy, I've created a wrapper class that allows for ALTER TABLE queries and does the dirty work for you. It has integrated error handling to ensure that queries are completely valid and it allows for complex statements such as:

ALTER TABLE foo ADD bar VARCHAR(27), DROP bar2, CHANGE bar3 foobar INTEGER, ADD bar4 DATE

Documentation:
http://code.jenseng.com/db/

Source:
http://code.jenseng.com/db/sql.txt
david at acz dot org 14-Jul-2004 08:29
You can use the PECL SQLite extension as a static (built into the executable) PHP module with PHP 4.  Download the extension tarball and extract it.  Move it to ext/sqlite in the PHP source directory.  Delete configure and run buildconf.

Example below.  Change version numbers as appropriate:

$ tar -xzvf php-4.3.8.tar.gz
$ tar -xzvf SQLite-1.0.2.tgz
$ mv SQLite-1.0.2 php-4.3.8/ext/sqlite
$ cd php-4.3.8
$ rm configure
$ ./buildconf --force

If everything worked, then you should now be able to build PHP with SQLite support:

$ ./configure --help | grep sqlite
  --with-sqlite           Include sqlite support

I think this method will work for other PECL extensions.
13-May-2004 09:46
PHP5 compile time option --enable-sqlite-utf8

See the note about buggy utf-8 support http://uk.php.net/manual/en/function.sqlite-libencoding.php
csaba at alum dot mit dot edu 14-Apr-2004 10:16
If you want to get the list of all the columns in a table (and associated information), PRAGMA is helpful (see http://sqlite.org/lang.html#pragma for details):

if (!($db=@sqlite_open("delme.db",0666,$sqliteerror))) die("Can't open database");
@sqlite_query ($db, 'DROP TABLE foo;');
sqlite_query($db, "CREATE TABLE foo (bar INTEGER PRIMARY KEY, baz VARCHAR(5));");
$aTableStruct = sqlite_array_query($db, "PRAGMA table_info('foo');", SQLITE_ASSOC);
for ($i=0,$aNames=array();$i<sizeof($aTableStruct);++$i)
    $aNames[]=$aTableStruct[$i]['name'];
var_dump ($aNames);    // => ['bar', 'baz']

Note also that if you want to use more than one database in the same connection using "ATTACH DATABASE ..." then you should supply the complete database filename.

Csaba Gabor
cricket at djcricket dot com 31-Mar-2004 11:30
To elaborate on vpupkin at comcast dot net's post about the INSERT query problem, you will be unable to execute any manipulation queries (INSERT/UPDATE/DELETE/ect) on the SQLite database file unless the directory the SQLite database file resides in is writable by the webserver.

The reason for this is because SQLite needs to write a lock file to the hard drive. After a processes finishes writting, it deletes the lock file. Other processes check for the lock file before writting to the SQLite database file and if present, delay writting until the lock file is no longer present.
jlsalinas at spamsucks dot gmx dot net 13-Feb-2004 07:22
For those looking for a function similar to mysql_list_tables, here you have:

if (! function_exists ('sqlite_list_tables')) {
    function sqlite_list_tables (&$dblink) {
        $tables = array ();
       
        $sql = "SELECT name FROM sqlite_master WHERE (type = 'table')";
        if ($res = sqlite_query ($dblink, $sql)) {
            while (sqlite_has_more($res)) {
                $tables[] = sqlite_fetch_single($res);
            }
        }
       
        return $tables;
    }
}

And a related funtion, to test if a given table exists:

if (! function_exists ('sqlite_table_exists')) {
    function sqlite_table_exists (&$dblink, $table) {
        $sql = "SELECT count(name) FROM sqlite_master WHERE ((type = 'table') and (name = '$table'))";
        if ($res = sqlite_query ($dblink, $sql)) {
            return sqlite_fetch_single($res) > 0;
        } else {
            return false; // or throw exception
        }
    }
}

Of course it would be preferable to have these functions included in the library, to avoid potential changes internal to SQLite; but we'll have to stick to this method until then.
vpupkin at comcast dot net 30-Nov-2003 09:53
if you are going to send INSERT queries, you will need to make the folder, where you put your "file.db", writable by a web server user, otherwise you'll receive error message - "Unable to open database . . . ". File permissions are not enough (phpinfo - SQLite Lib 2.8.3)
Minots Estich <minots at D0X dot de> 21-Nov-2003 07:47
If you gone in trouble while/with installation of sqlite,
you can try the installation steps I've done at
RedHat9 with PHP4.3.4 and Apache 1.3.28
via the Linux shell:

# wget http://pecl.php.net/get/SQLite-1.0.tgz
# tar xzf SQLite-1.0.tgz
# cd sqlite
# export PHP_PREFIX="/usr"
# $PHP_PREFIX/bin/phpize
# ./configure
# make
# make install

After that add following to php.ini and restart Apache:

[sqlite]
extension="sqlite.so"
ng4rrjanbiah at rediffmail dot com 07-Nov-2003 08:19
Very nice MS PowerPoint presentation titled "SQLite and PHP" (author: Wez Furlong) can be downloaded at http://www.php.net/~wez/SQLite_and_PHP.ppt [134 KB]

HTH,
R. Rajesh Jeba Anbiah
add a note add a note

 
show source | credits | sitemap | contact | advertising | mirror sites