sqlite_fetch_column_types

SQLiteDatabase::fetchColumnTypes

(PHP 5 < 5.4.0)

sqlite_fetch_column_types -- SQLiteDatabase::fetchColumnTypes — Return an array of column types from a particular table

Descrição

sqlite_fetch_column_types ( string $table_name , resource $dbhandle [, int $result_type = SQLITE_ASSOC ] ) : array

Estilo orientado à objeto (method):

public SQLiteDatabase::fetchColumnTypes ( string $table_name [, int $result_type = SQLITE_ASSOC ] ) : array

sqlite_fetch_column_types() returns an array of column data types from the specified table_name table.

Parâmetros

table_name: The table name to query.
dbhandle: The SQLite Database resource; returned from sqlite_open() when used procedurally. This parameter is not required when using the object-oriented method.
result_type: The optional result_type parameter accepts a constant and determines how the returned array will be indexed. Using SQLITE_ASSOC will return only associative indices (named fields) while SQLITE_NUM will return only numerical indices (ordinal field numbers). SQLITE_ASSOC is the default for this function.

Valor Retornado

Returns an array of column data types; FALSE on error.

Os nomes de colunas retornados por SQLITE_ASSOC e SQLITE_BOTH serão serão modificados para maiúsculas/minúsculas de acordo com o valor da opção de configuração sqlite.assoc_case .

Changelog

Versão	Descrição
5.1.0	Added `result_type`

Exemplos

Exemplo #1 Procedural example


<?php
$db = sqlite_open('mysqlitedb');
sqlite_query($db, 'CREATE TABLE foo (bar varchar(10), arf text)');
$cols = sqlite_fetch_column_types('foo', $db, SQLITE_ASSOC);

foreach ($cols as $column => $type) {
    echo "Column: $column  Type: $type\n";
}
?>

Exemplo #2 Object-oriented example


<?php
$db = new SQLiteDatabase('mysqlitedb');
$db->query('CREATE TABLE foo (bar varchar(10), arf text)');
$cols = $db->fetchColumnTypes('foo', SQLITE_ASSOC);

foreach ($cols as $column => $type) {
    echo "Column: $column  Type: $type\n";
}
?>

O exemplo acima irá imprimir:

Column: bar  Type: VARCHAR
Column: arf  Type: TEXT

add a note

User Contributed Notes 3 notes

down

Anonymous ¶

19 years ago


The problem with the permanently locked database file when using this function still seems to exist in PHP 5.0.3 (tested on win32).

However, you can get all the information you need about the fields of a table by using this query:

PRAGMA table_info(name_of_your_table);

down

-1

enthusiast ¶

19 years ago


If I (OO version) try to add the contant SQLITE_ASSOC, (exactly as listed in the above example) it generates the following error:

SQLiteDatabase::fetchColumnTypes() expects exactly 1 parameter, 2 given in C:\.... 

If I remove it completely, it returns the associative array I expected.

down

-1

hugo_pl at users dot sourceforge dot net ¶

20 years ago


This function, and the OO version, is bugged in PHP <= 5.0.1, locking the database until you restart the webserver.

http://bugs.php.net/bug.php?id=29476

add a note