URGENT: Write PHP function to Convert Seconds to Words

Hello, I want a PHP function to convert seconds to minutes, hours, days, weeks, months with some functions and variables. this function will be used to calculate the working hours for employees, so I want to: 1. define the day hours to be 8 instead of 24. 2. define the weekend days. 3. define break hours. 4. calculate based on current day. for example, if this day is Wednesday and I have a job that take 3 days of working ( 86400 seconds). should the result to be: 4 Days [because the Friday is defined as weekend]. but if the days is Monday then the result for the same seconds should be 3 Days because there is no weekends in the period. the same thing for the break hour.