public function testCountElement()
{
$array = CArray::fromElements("a", "c", "b", "c", "d", "e", "c", "c", "f", "g", "h", "c");
// Using the default comparator.
$this->assertTrue(CArray::countElement($array, "c") == 5);
// Using a custom comparator.
$comparator = function ($string0, $string1) {
return CString::toLowerCase($string0) === CString::toLowerCase($string1);
};
$this->assertTrue(CArray::countElement($array, "C", $comparator) == 5);
}
/**
* Tells how many elements with a specified value there are in an array.
*
* You can use your own comparator for the search, but the default comparator has got you covered when searching
* for scalar values, such as `string`, `int`, `float`, and `bool`. And the default comparator is smart enough to
* know how to compare objects of those classes that conform to the IEquality or IEqualityAndOrder interface
* (static or not), including CUStringObject, CArrayObject, CMapObject, CTime etc. See the
* [CComparator](CComparator.html) class for more on this.
*
* @param mixed $element The value of the searched element.
* @param callable $comparator **OPTIONAL. Default is** `CComparator::EQUALITY`. The function or method to be
* used for the comparison of element values while searching. If this parameter is provided, the comparator should
* take two parameters, with the first parameter being an element from the array and the second parameter being the
* searched element, and return `true` if the two elements are equal and `false` otherwise.
*
* @return int The number of such elements in the array.
*
* @link CComparator.html CComparator
*/
public function countElement($element, $comparator = CComparator::EQUALITY)
{
return CArray::countElement($this->m_splArray, $element, $comparator);
}
