mysql_fetch_array添加所有行？

Question

如何將mysql_query中的所有行添加到mysql_fetch_array（）？我希望能夠儘可能有效地做到這一點，因爲它可以用很多行工作。

Answer 1

最常見的方式：

$rows = array(); 

while(($row = mysql_fetch_array($result))) { 
    $rows[] = $row; 
} 

as shown in the examples in the documentation.

Answer 2

<?php 

$db = new mysqli("localhost", "foo_dbo", "pass", "foo_db", 3306); 

$startTime = microtime(true); 

$result = $db->query("select * from users"); 

$users = $result->fetch_all(MYSQLI_ASSOC); // faster 

// while($row = $result->fetch_assoc()) $users[] = $row; //slower 

echo sprintf("%d users fetched in %s secs", 
    count($users), number_format(microtime(true) - $startTime, 6, ".", "")); 

$db->close(); 

?> 

編輯一些運行時統計

$users = $result->fetch_all() 

    1000 users fetched in 0.001462 secs 
    5000 users fetched in 0.005493 secs 
15000 users fetched in 0.015517 secs 
50000 users fetched in 0.051950 secs 
100000 users fetched in 0.103647 secs 

與

while($row = $result->fetch_assoc()) $users[] = $row; 

    1000 users fetched in 0.001945 secs 
    5000 users fetched in 0.008101 secs 
15000 users fetched in 0.023481 secs 
50000 users fetched in 0.081441 secs 
100000 users fetched in 0.163282 secs 

有趣:)