ingres_field_length

(PHP 4 >= 4.0.2, PHP 5 < 5.1.0, PECL ingres >= 1.0.0)

ingres_field_length — Get the length of a field

说明

ingres_field_length ( resource $result , int $index ) : int

ingres_field_length() returns the length of a field. This is the number of bytes the server uses to store the field. For detailed information, see the Ingres OpenAPI User Guide, Appendix "Data Types" in the Ingres documentation.

Note: Related Configurations

See ingres.array_index_start in Runtime Configuration

参数

result

The query result identifier

index

index is the column number whose length will be retrieved.

The possible values of index depend upon the value of ingres.array_index_start. If ingres.array_index_start is 1 (the default) then index must be between 1 and the value returned by ingres_num_fields(). If ingres.array_index_start is 0 then index must be between 0 and ingres_num_fields() - 1.

返回值

Returns the length of a field.

参见

ingres_query() - Send an SQL query to Ingres
ingres_fetch_array() - Fetch a row of result into an array
ingres_fetch_assoc() - Fetch a row of result into an associative array
ingres_fetch_object() - Fetch a row of result into an object
ingres_fetch_row() - Fetch a row of result into an enumerated array

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官方地址：https://www.php.net/manual/en/function.ingres-field-length.php

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ingres_field_length

说明

参数

返回值

参见

User Contributed Notes