* 毫秒级转化成13位时间戳 | 传入参 | 说明 | | --- | --- | | str | \[ 选填 \] 指定毫秒级时间 | | 回调参 | 说明 | | --- | --- | | [ stamp ] | 毫秒级时间戳 | * 案例 ~~~ $obj = $T_T->mic_stamp(); $obj = $T_T->mic_stamp('2017-10-10 10:20:30:123'); ~~~ > 1602410482460 1507602030123