Occurrence of string in array

Question

I need to count the occurrences of each element in a given array. So far, I have managed to achieve this with the exception that it loops all elements and I need to output only those which are unique.

<?php

$array = array('b','b','a','a','b');

foreach ($array as $element) {

    $hold = implode(" ", $array);
    print $element. ' -> ' . substr_count($hold, $element) . '<br />';

}

Thus the output now is:

b -> 3
b -> 3
a -> 2
a -> 2
b -> 3

I want to remove the duplicate elements but if I do array_unique() before I implode() and subsequently make the count, I will get only one occurrence due to the fact that I have removed the repeating elements.

alex · Accepted Answer · 2014-06-30 01:17:59Z

2

Use array_count_values() to do it for you.

$counts = array_count_values($array);

foreach ($counts as $match => $count) {
     echo "$match -> $count";
}

answered Jun 30, 2014 at 1:17

alex

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6 Comments

Julian Sanders Over a year ago

Yes, that would do. Quick question - how do I sort output ascending.

zerkms Over a year ago

@user3788751: using sort()

Julian Sanders Over a year ago

How could I wrap $match with sort() when it's not an array?

zerkms Over a year ago

@user3788751: you haven't told anything about $match but about output. What exactly do you want? Have you checked ksort?

zerkms Over a year ago

@user3788751: Have you checked ksort? (not sure why you have ignored this advice)

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