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
说明
$table_name ,
resource $dbhandle [,
int $result_type = SQLITE_ASSOC ] ) :
array
面向对象风格 (method):
$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.
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_typeparameter accepts a constant and determines how the returned array will be indexed. UsingSQLITE_ASSOCwill return only associative indices (named fields) whileSQLITE_NUMwill return only numerical indices (ordinal field numbers).SQLITE_ASSOCis the default for this function.
返回值
Returns an array of column data types; FALSE on error.
由 SQLITE_ASSOC 与 SQLITE_BOTH 返回的列名会依照 sqlite.assoc_case 配置选项的值决定大小写。
更新日志
| 版本 | 说明 |
|---|---|
| 5.1.0 | Added result_type |
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\n";
}
?>
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\n";
}
?>
以上例程会输出：
Column: bar Type: VARCHAR Column: arf Type: TEXT
