php 从while循环中获取计数器的更简单方法?
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easier way to get counter from while loop?
提问by Bob
I have the following:
我有以下几点:
$counter = 1;
while($row= mysql_fetch_assoc($result)) {
$counter2 = $counter++;
echo($counter2 . $row['foo']);
}
Is there an easier way to get 1,2,3 etc for each result or is this the best way?
有没有更简单的方法可以为每个结果获得 1,2,3 等,或者这是最好的方法?
Thanks
谢谢
回答by GordonM
You don't need $counter2. $counter++ is fine. You can even do it on the same line as the echo if you use preincrement instead of postincrement.
你不需要 $counter2。$counter++ 很好。如果您使用 preincrement 而不是 postincrement,您甚至可以在与 echo 相同的行上执行此操作。
$counter = 0;
while($row= mysql_fetch_assoc($result)) {
echo(++$counter . $row['foo']);
}
回答by Daniel Freudenberger
I know it's not exactly what you have asked for - but why don't you simply use a for-loop instead of while?
我知道这不完全是你所要求的 - 但你为什么不简单地使用 for 循环而不是 while 呢?
for ($i = 0; $row = mysql_fetch_assoc($result); ++$i) {
echo $i . $row['foo'];
}