<?php ??????$var=sprintf("%02d", 2);//生成2位数,不足前面补0 ??????echo $var;//结果为02 ???>
參考:https://blog.csdn.net/shaobaojie/article/details/17268627
php格式化数字:位数不足前面加0补足
<?php ??????$var=sprintf("%02d", 2);//生成2位数,不足前面补0 ??????echo $var;//结果为02 ???>
參考:https://blog.csdn.net/shaobaojie/article/details/17268627
php格式化数字:位数不足前面加0补足