PHP - Count Unique Word and Add Counted Prefix

Question

I tried this

$data = "air;air;air;bus;air;air;bus;air;air";
$a = substr_count($data,"air");
$b = substr_count($data,"bus");
$data = implode($a . ' x ', array_unique(explode('air;', $data)));
echo $data;

And I get

7 x bus;7 x air

What I actually want to get is

7 x air 2 x bus

Help please..

You say you wanted to count words, so why are you actually counting single letters instead? — C3roe
– C3roe, Commented Sep 13, 2023 at 13:13
echo implode($a . ' x ', array_unique(explode('air;', $data))); - that makes so little sense, I would not even know where to start ... Just explode your string at the ;, and then use php.net/manual/en/function.array-count-values.php — C3roe
– C3roe, Commented Sep 13, 2023 at 13:15
@CBroe - sorry i made typo mistake. I have revised it into counting word. — Pekzz
– Pekzz, Commented Sep 13, 2023 at 13:15
So what is with that overly complicated last line, why don't you simply do echo $a . ' x air ' . $b . ' x bus'; ...? — C3roe
– C3roe, Commented Sep 13, 2023 at 13:17
@CBroe - Because I want to replace $data - (I just revised my code again to better reflex it. Sorry) — Pekzz
– Pekzz, Commented Sep 13, 2023 at 13:26

AmooAti · Accepted Answer · 2023-09-13 14:11:26Z

2

You can use explode function to make an array from the string and then use array_count_values which returns an array with the count of all the values.

<?php
$data = "air;air;air;bus;air;air;air;air";

$arrayData = explode(';', $data);
$counts = array_count_values($arrayData);

$parsedData = '';
foreach ($counts as $key => $val) {
    $parsedData .= $val > 1 ? "$val x $key, " : "$key, ";
}

echo rtrim($parsedData, ', ');

Note: array_count_values is case-sensitive and if you want to count the values with case-insensitive, first you need to make the whole string upper case or lower case using strtoupper orstrtolower.

edited Sep 13, 2023 at 14:11

answered Sep 13, 2023 at 13:17

AmooAti

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7 Comments

Pekzz Over a year ago

I want to replace $data with 7 x air 2 x bus - (I just revised my code in question again to better reflex it. Sorry)

AmooAti Over a year ago

@Pekzz I changed my code. I like to create a new variable because "Explicit is better than implicit", but you can replace parsedData with data wherever it's used.

AmooAti Over a year ago

@Pekzz the values can be only air and bus? If there's no bus, still you want to show it in the result?

Pekzz Over a year ago

Thank you. This works well. However, sometimes my initial $data only contains air or bus or nothing. How to display only air or bus or nothing without showing 1 x ?

AmooAti Over a year ago

@Pekzz, You're welcome. I updated the code and added array_filter to filter out all empty values from the array. If we give an empty string to explode, it will return an array containing an element, which is an empty string.

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Wimanicesir · Accepted Answer · 2023-09-13 13:58:18Z

1

Your code worked! However you did something weird to display it.

If we use the simplest way to show it you can see it works:

<?php
$data = "air;air;air;bus;air;air;bus;air;air";

$a = substr_count($data,"air");
$b = substr_count($data,"bus");

echo $a . ' x ' . 'air' . ' ' . $b . ' x ' . 'bus';

However this can be more dynamic:

<?php
$data = "air;air;air;bus;air;air;bus;air;air";

$words = array_unique(explode(';', $data));

foreach ($words as $word) {
    echo substr_count($data, $word) . ' x ' .$word;
    echo ' ';
}

answered Sep 13, 2023 at 13:58

Wimanicesir

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