fbsql_list_fields
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
fbsql_list_fields — List FrontBase result fields
说明
fbsql_list_fields (
string
$database_name ,
string $table_name [,
resource $link_identifier ] ) :
resource
Retrieves information about the given table.
参数
-
database_name -
The database name.
-
table_name -
The table name.
-
link_identifier -
由 fbsql_connect() 或 fbsql_pconnect() 返回的 FrontBase 链接标识符.
如可选并未指定，函数会尝试查找一个到 FrontBase 服务器的开放链接，且如没有找到这样的链接，会尝试通过不带参数调用 fbsql_connect() 来创建一个。
返回值
Returns a result pointer which can be used with the fbsql_field_xxx functions, or FALSE on error.
错误／异常
A string describing the error will be placed in $phperrmsg, and unless the function was called as @fbsql() then this error string will also be printed out.
范例
Example #1 fbsql_list_fields() example
<?php
$link = fbsql_connect('localhost', 'myname', 'secret');
$fields = fbsql_list_fields("database1", "table1", $link);
$columns = fbsql_num_fields($fields);
for ($i = 0; $i < $columns; $i++) {
echo fbsql_field_name($fields, $i) . "\n";;
}
?>
以上例程的输出类似于：
field1 field2 field3 ...
参见
- fbsql_field_len() - Returns the length of the specified field
- fbsql_field_name() - Get the name of the specified field in a result
- fbsql_field_type() - Get the type of the specified field in a result
- fbsql_field_flags() - Get the flags associated with the specified field in a result
