Returns the position of the named column in a result set

说明

int db2_field_num ( resource $stmt , mixed $column )

Returns the position of the named column in a result set.

参数

stmt: Specifies a statement resource containing a result set.
column: Specifies the column in the result set. This can either be an integer representing the 0-indexed position of the column, or a string containing the name of the column.

返回值

Returns an integer containing the 0-indexed position of the named column in the result set. If the specified column does not exist in the result set, db2_field_num() returns FALSE.

参见

db2_field_display_size() - Returns the maximum number of bytes required to display a column
db2_field_name() - Returns the name of the column in the result set
db2_field_precision() - Returns the precision of the indicated column in a result set
db2_field_scale() - Returns the scale of the indicated column in a result set
db2_field_type() - Returns the data type of the indicated column in a result set
db2_field_width() - Returns the width of the current value of the indicated column in a result set