Returns an array of strings, each of which is a substring of string formed by splitting it on boundaries formed by the string separator. If limit is set, the returned array will contain a maximum of limit elements with the last element containing the whole rest of string. If an empty string ("") is used as the separator argument, then explode() will return FALSE. If separator contains a value that is not contained in the string argument, thenexplode() will return the string argument.
Note: The limit parameter was added in PHP 4.0.1
Note: Although implode() can for historical reasons accept its parameters in either order, explode() cannot. You must ensure that the separator argument comes before the string argument.
See also preg_split(), spliti(), split() and implode().