php – 如何将逗号放入计数数字？

嘿,我用这段代码计算我的表：

$county = mysql_query("SELECT COUNT(id) from table where type = 'application'");
$county = mysql_result($county,0);
$applications = ''.$county.'';

这给我的结果像1156563.但我希望看到它像1,156,563逗号.我怎样才能做到这一点？
最佳答案
number_format()应该是你需要的

If only one parameter is given,number
will be formatted without decimals,
but with a comma (“,”) between every
group of thousands.