count Count all elements in an array, or something in an object &reftitle.description; intcount mixedarray_or_countable intmodeCOUNT_NORMAL Counts all elements in an array, or something in an object. For objects, if you have SPL installed, you can hook into count by implementing interface Countable. The interface has exactly one method, Countable::count, which returns the return value for the count function. Please see the Array section of the manual for a detailed explanation of how arrays are implemented and used in PHP. &reftitle.parameters; array_or_countable An array or Countable object. mode If the optional mode parameter is set to COUNT_RECURSIVE (or 1), count will recursively count the array. This is particularly useful for counting all the elements of a multidimensional array. count can detect recursion to avoid an infinite loop, but will emit an E_WARNING every time it does (in case the array contains itself more than once) and return a count higher than may be expected. &reftitle.returnvalues; Returns the number of elements in array_or_countable. If the parameter is not an array or not an object with implemented Countable interface, 1 will be returned. There is one exception, if array_or_countable is &null;, 0 will be returned. count may return 0 for a variable that isn't set, but it may also return 0 for a variable that has been initialized with an empty array. Use isset to test if a variable is set. &reftitle.examples; ]]> array('orange', 'banana', 'apple'), 'veggie' => array('carrot', 'collard', 'pea')); // recursive count echo count($food, COUNT_RECURSIVE); // output 8 // normal count echo count($food); // output 2 ?> ]]> &reftitle.seealso; is_array isset empty strlen