求一个正则表达式 去除小数点后面的000

Question

比如
8.38370000
要结果为 8.3837
8.0038370000
要结果为 8.3837
8.38370010
要结果为 8.3837001

Answer 1

$s =<<< TXT
8.38370000
8.0038370000
8.38370010
TXT;
echo preg_replace('/(?<=\d)0+\b|(?<=\.)0+/', '', $s);8.3837
8.3837
8.38370018.0038370000 要变成 8.3837 应该是无理要求

Answer 2

$string = "8.38370010";
echo (float)$string;8.3837001

Answer 3

preg_replace('/[^0]0+$/','',$s);8.0038370000 要变成 8.3837 应该是无理要求