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

说明

面向对象风格

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

过程化风格

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

mysqli_fetch_all() fetches all result rows and returns the result set as an associative array, a numeric array, or both.

参数

result

仅以过程化样式：由 mysqli_query()，mysqli_store_result() 或 mysqli_use_result()返回的结果集标识。

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.

返回值

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

仅 MySQL 原生驱动

仅可用于 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.

参见

相关文章
php cubrid mysql 兼容性函数 fetch a result row as an associative array a numeric array or bothphp ibm db2 函数 returns an array indexed by both column name and position representing a row in a result setphp frontbase 函数 fetch a result row as an associative array a numeric array or bothphp firebird/interbase 函数 fetch a result row from a query as an associative arrayphp ingres 函数 fetch a row of result into an associative arrayphp maxdb 函数 fetch a result row as an associative a numeric array or bothphp mssql 函数 fetch a result row as an associative array a numeric array or bothphp mssql 函数 returns an associative array of the current row in the resultphp postgresql 函数 fetches all rows in a particular result column as an arrayphp sqlite 函数 fetches all rows from a result set as an array of arraysphp sqlite 函数 fetches the next row from a result set as an arrayphp sybase 函数 fetch a result row as an associative arrayphp mysql xdevapi rowresult get all rows from resultphp mysqli result fetches all result rows as an associative array a numeric array or bothphp mysqli result fetch a result row as an associative a numeric array or bothphp mysqli result fetch a result row as an associative arrayphp mysqli result returns an array of objects representing the fields in a result setphp mysqli result get a result row as an enumerated arrayphp mysqli result gets the number of rows in a resultphp sqlite3result fetches a result row as an associative or numerically indexed array or both
关注编程学问公众号