[edit] Last updated: Fri, 30 Nov 2012

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

Opis

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

Styl obiektowy (method):

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

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

Parametry

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.

Zwracane wartości

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

Wielkość liter w nazwach kolumn zwróconych przez SQLITE_ASSOC i SQLITE_BOTH zostaną przetworzone zależnie od ustawienia opcji konfiguracji sqlite.assoc_case.

Rejestr zmian

Wersja	Opis
5.1.0	Added `result_type`

Przykłady

Przykład #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";
}
?>

Przykład #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";
}
?>

Powyższy przykład wyświetli:

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

sqlite_fetch_object

sqlite_fetch_array

[edit] Last updated: Fri, 30 Nov 2012

add a note User Contributed Notes sqlite_fetch_column_types - [3 notes]

down

enthusiast ¶

8 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

Anonymous ¶

8 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

hugo_pl at users dot sourceforge dot net ¶

8 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

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