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

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

面向对象风格 (method):

public 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.

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_ASSOC is 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