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# pg_fetch_array

(PHP 3>= 3.0.1, PHP 4 , PHP 5)

pg_fetch_array -- Fetch a row as an array

## Description

array pg_fetch_array ( resource result [, int row [, int result_type]])

pg_fetch_array() returns an array that corresponds to the fetched row (tuples/records). It returns `FALSE`, if there are no more rows.

pg_fetch_array() is an extended version of pg_fetch_row(). In addition to storing the data in the numeric indices (field index) to the result array, it also stores the data in associative indices (field name) by default.

> 備注:This function sets NULL fields to PHP `NULL` value.

row is row (record) number to be retrieved. First row is 0.

result_type is an optional parameter that controls how the return value is initialized. result_type is a constant and can take the following values: `PGSQL_ASSOC`, `PGSQL_NUM`, and `PGSQL_BOTH`. pg_fetch_array() returns associative array that has field name as key for `PGSQL_ASSOC`, field index as key with `PGSQL_NUM` and both field name/index as key with `PGSQL_BOTH`. Default is `PGSQL_BOTH`.

> 備注: result_type was added in PHP 4.0.

pg_fetch_array() is NOT significantly slower than using pg_fetch_row(), while it provides a significant ease of use.

示範 1.pg_fetch_array() example
`<?php $conn = pg_pconnect("dbname=publisher"); if (!$conn) { echo "An error occured.\n"; exit; } $result = pg_query($conn, "SELECT * FROM authors"); if (!$result) { echo "An error occured.\n"; exit; } $arr = pg_fetch_array($result, 0, PGSQL_NUM); echo $arr[0] . " <- array\n"; $arr = pg_fetch_array($result, 1, PGSQL_ASSOC); echo $arr["author"] . " <- array\n"; ?>`

> 備注: From 4.1.0, row became optional. Calling pg_fetch_array() will increment internal row counter by 1.

See also pg_fetch_row(), pg_fetch_object() and pg_fetch_result().

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