MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli_result::fetch_all
mysqli_fetch_all
Fetches all result rows as an associative array, a numeric array, or both
Object oriented style
public mixed mysqli_result::fetch_all(int resulttype= =MYSQLI_NUM);
Procedural style
mixed mysqli_fetch_all(mysqli_result result,
int resulttype= =MYSQLI_NUM);
mysqli_fetch_all
fetches all result rows and returns the result set as an
associative array, a numeric array, or both.
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
.
Returns an array of associative or numeric arrays holding result rows.
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 reasons
mysqli_fetch_all
should only be used in those situations where the fetched result
set will be sent to another layer for processing.
mysqli_fetch_array
|
mysqli_query
|