sqlite_fetch_column_types
SQLiteDatabase->fetchColumnTypes
(No version information available, might be only in CVS)
SQLiteDatabase->fetchColumnTypes —
Return an array of column types from a particular table
说明
array sqlite_fetch_column_types
( string $table_name
, resource $dbhandle
[, int $result_type
] )
Object oriented style (method):
SQLiteDatabase
array fetchColumnTypes
( string $table_name
[, int $result_type
] )
sqlite_fetch_column_types() returns an array of column
data types from the specified table_name
table.
参数
-
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_BOTH will return both associative and
numerical indices. SQLITE_ASSOC is the default for
this function.
返回值
Returns an array of column data types; FALSE on error.
由
SQLITE_ASSOC 和 SQLITE_BOTH
返回的列名会根据
sqlite.assoc_case
配置选项的值来决定大小写。
范例
Example#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";
}
?>
Example#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";
}
?>
Column: bar Type: VARCHAR
Column: arf Type: TEXT