My name is Edward Tanguay. I'm an American software and web developer living and working in Berlin, Germany.


A PHP function which returns the most frequently occuring item This function shows how you can get the most frequently occurring item out of an array using array_count_values() and arsort(). ![]()
<?php
//should return "paragraph" echo getMostFrequentlyOccurringItem(array('line', 'paragraph', 'paragraph')) . '<hr/>'; //should return "line" echo getMostFrequentlyOccurringItem(array('wholeNumber', 'date', 'date', 'line', 'line', 'line')) . '<hr/>'; //should return null echo getMostFrequentlyOccurringItem(array('wholeNumber', 'wholeNumber', 'paragraph', 'paragraph')) . '<hr/>'; //should return "wholeNumber" echo getMostFrequentlyOccurringItem(array('wholeNumber', '', '', '')) . '<hr/>'; function getMostFrequentlyOccurringItem($items) { //catch invalid entry if($items == null) { return null; } if(count($items) == 0) { return null; } //sort $groups = array_count_values($items); arsort($groups); //if there was a tie, then return null $groupAmounts = array_values($groups); if($groupAmounts[0] == $groupAmounts[1]) { return null; } //get most frequent $mostFrequentGroup = ''; foreach($groups as $group => $numberOfTimesOccurrred) { if(trim($group) != '') { $mostFrequentGroup = $group; break; } } return $mostFrequentGroup; } ?> |
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