PHP: Sorting Arrays of Arrays. PHP provides a range of functions for sorting data based on either the key or value of an associative array. Where it gets complicated is when you need to sort an array of associative arrays by one or more conditions. This is a very common task for PHP programmers as data returned from database/SQL queries often appears in associative array format (i.e. using pg_fetch_assoc and mysql_fetch_assoc).
Epididymitis is an inflammation of the epididymis. The epididymis is the tube through which sperm pass. The tube is located at the back of each testicle. Epididymitis can affect both testicles, but it most often occurs on just one side.
Epididymitis can also be caused by injury or infection of the scrotum or by irritation from urine that has accumulated in the vas deferens (the duct through which sperm travels after leaving the epididymis). Epididymitis is characterized by pain in the testes. The pain, which usually develops gradually over several hours or days, is followed by sudden redness and swelling of the scrotum. Generally, only one testicle is affected. The affected testicle is hard and sore, and the other testicle may feel tender.