问题
I need to add values received from MySQL into an array [PHP], here is what I've got:
$players = array();
while ($homePlayerRow = mysql_fetch_array($homePlayerResult)) {
$players[] = $homePlayerRow['player_id'];
}
Is this the only way of doing it? Also, is the following faster/better?
$players = array();
while ($homePlayerRow = mysql_fetch_array($homePlayerResult)) {
array_push($players, $homePlayerRow['player_id']);
}
Thanks in advance
回答1:
u can run and see that array_push is slower in some case
http://snipplr.com/view/759/speed-test-arraypush-vs-array/
run your code . enjoy
回答2:
Depends...
Documentation says,
"If you use array_push() to add one element to the array it's better to use $array[] = because in that way there is no overhead of calling a function."
Source: http://us2.php.net/array_push
So it boils down to how much data you want to cram into that array at any particular moment. Additionally, there's a fall-back, if the array-referenced doesn't exist when you call it using array_push, you'll bump an error. If you use $array[], the array will be created for you.
来源：https://stackoverflow.com/questions/1074059/array-push-vs-array-which-is-fastest