格式编号从（ - / +）xx.xxxxxxxxx到PHP中的xxxx.xxxx

Question

i need to arrange a number to a format like this xxxx.xxxx. But I get as input something like this (-/+)xx.xxxxxxxxx.

If the number is x.xx it should get the above mentioned format by adding 0s to end and front.

please guide me on the correct way to get this done!

Answer 1

You can use explode & str_pad -

$num = 7.89;

$temp = explode('.', $num);

echo str_pad($temp[0], 4, 0, STR_PAD_LEFT).'.'.str_pad($temp[1], 4, 0, STR_PAD_RIGHT);

Output

0007.8900