PHP - Find repeated strings and group them with counting - php

Question

I have many strings looking like this:
6 (39), 10 (44), 11 (45), 11½ (45.5), 12 (46)
6 (39), 7 (40.5), 8 (42), 8½ (42.5), 9 (43), 10 (44.5), 11 (46)
6 (39), 7 (40.5), 8 (42), 8½ (42.5), 9 (43), 11 (46)
I got these results with this code:
<?PHP
$rscat = mysql_query("SELECT `Sizes` FROM `products` WHERE `Category`='$Cat'");
while($rowscat = mysql_fetch_array($rscat))
{
$CatSizes = $rowscat['Sizes'];
echo "$CatSizes <br>";
}
?>
What I want: as you can see in the last example the string 6 (39) is repeated exactly three times, the string 7 (40.5) is repeated exactly two times.
So I want a result like this:
6 (39) - (3)
7 (40.5) - (2)
Of course I do not need that just for 7 (41) and 10 (44); I need to find all strings which are repeating and display them in just one row and aside to show how many times they are repeated.
I hope you understand me well.
Thanks in advance!

Answer 1

Advance warning: OP edited their post several times, so there are multiple answers below. I'm leaving them all intact in case others find them helpful.
Original answer
You can use the array_count_values() function for exactly this: it returns a new array with each repeated value as the array key, and the number of times that value appears as the array value. Using your original example, you'd need something like this:
$input = <<<EOT
7 (41)
8 (42)
9 (43)
10 (44)
11 (45)
6 (39)
7 (41)
EOT;
$split = explode("\n", $input);
$counted = array_count_values($split);
foreach($counted as $value => $count) {
echo "$value - ($count)\n";
}
Note: I trimmed the number of strings going into $input for conciseness, but you get the point. Output from that script:
7 (41) - (8)
8 (42) - (6)
9 (43) - (6)
10 (44) - (6)
11 (45) - (7)
8½ (42.5) - (1)
12 (46) - (1)
6 (39) - (3)
You might find the PHP documentation for array_count_values() helpful reading.
Update #1
OP edited their post, rendering my original answer incorrect. Using their edited version, the correct code is this:
$input = "6 (39), 10 (44), 11 (45), 11½ (45.5), 12 (46), 6 (39), 7 (40.5), 8 (42), 8½ (42.5), 9 (43), 10 (44.5), 11 (46), 6 (39), 7 (40.5), 8 (42), 8½ (42.5), 9 (43), 11 (46)";
$split = explode(", ", $input);
$counted = array_count_values($split);
foreach($counted as $value => $count) {
echo "$value - ($count)\n";
}
WARNING: Make sure the items are all separated by commas, not by a mix of new lines and commas. OP: you should choose new lines as in your original version, or choose commas, but don't mix the two if you want this code to work.
Update #2
OP has asked to modify the solution so it works directly with their SQL query. This is tricky because I don't know exactly what data is coming out, but based on their previous edits the answer is likely to look something like this:
$rscat = mysql_query("SELECT `Sizes` FROM `products` WHERE `Category`='$Cat'");
$arrayOfSizes = [];
while($rowscat = mysql_fetch_array($rscat)) {
$arrayOfSizes[] = $rowscat['Sizes'];
}
$counted = array_count_values($arrayOfSizes);
foreach($counted as $value => $count) {
echo "$value - ($count)\n";
}