PHP Manual
ODBC 函数
Get the length (precision) of a field

odbc_field_len

(PHP 4, PHP 5, PHP 7)

odbc_field_len — Get the length (precision) of a field

说明

odbc_field_len ( resource $result_id , int $field_number ) : int

Gets the length of the field referenced by number in the given result identifier.

参数

result_id: The result identifier.
field_number: The field number. Field numbering starts at 1.

返回值

Returns the field length, or FALSE on error.

参见

odbc_field_scale() - Get the scale of a field to get the scale of a floating point number

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