Definition and Usage. The array() function is used to create an array. In PHP, there are three types of arrays: Indexed arrays - Arrays with numeric index. Associative arrays - Arrays with named keys. Multidimensional arrays - Arrays containing one or more arrays.
Liters and milligrams aren't compatible (liters measure volume and milligrams measure mass). One liter of water is equal to 1,000,000 milligrams, and there are 1000 milliliters in one liter. ChaCha again soon! data-config-site-section=chacha>.
For our purposes, 35,000 milligrams/Liter is the same measurement as 35,000 parts per million.* Both. measurements tell us how many parts (milligrams) are present in every million parts (Liter). * In reality, for these measurements to be perfectly equal, they must be taken with pure water at. standard temperature and pressure.