Fetches all result rows as an associative array, a numeric array, or both (original) (raw)

mysqli_result::fetch_all

mysqli_fetch_all

(PHP 5 >= 5.3.0, PHP 7)

mysqli_result::fetch_all -- mysqli_fetch_all — Fetches all result rows as an associative array, a numeric array, or both

Description

Object oriented style

public mysqli_result::fetch_all ([ int $resulttype = MYSQLI_NUM ] ) : mixed

mysqli_fetch_all ( mysqli_result $result [, int $resulttype = MYSQLI_NUM ] ) : mixed

Parameters

result

Procedural style only: A result set identifier returned by mysqli_query(), mysqli_store_result()or mysqli_use_result().

resulttype

This optional parameter is a constant indicating what type of array should be produced from the current row data. The possible values for this parameter are the constants MYSQLI_ASSOC,MYSQLI_NUM, or MYSQLI_BOTH.

Return Values

Returns an array of associative or numeric arrays holding result rows.

MySQL Native Driver Only

Available only with mysqlnd.

As mysqli_fetch_all() returns all the rows as an array in a single step, it may consume more memory than some similar functions such as mysqli_fetch_array(), which only returns one row at a time from the result set. Further, if you need to iterate over the result set, you will need a looping construct that will further impact performance. For these reasonsmysqli_fetch_all() should only be used in those situations where the fetched result set will be sent to another layer for processing.