- print_r: documentation ( source)
- sort: documentation ( source)
- array_unique: documentation ( source)
<?php
$test_alfa = array();
$test_alfa[0] = "aa";
$test_alfa[1] = "aa";
$test_alfa[2] = "aa";
$test_alfa[3] = "bb";
$test_alfa[4] = "aa";
$test_alfa[5] = "bb";
$test_alfa[6] = "cc";
$test_alfa[7] = "bb";
$test_beta= array_unique($test_alfa);
$numValues = count($test_beta);
sort($test_beta);
print_r($test_beta);
echo ("Number of elements in test_beta = $numValues ");