Parse diverse array of numbers for value and number - php

Question

I am using PHP 7.3.5 and I have the following set of array values:
$valueArr = ['-4.2%', '51.0', '90K', '0.5%', '0.74|2.6', '-1.2B', '779B', '215K', '92.2%', '42.8B', '1.49T', '1690B', '-10.8B', '0.38|3.9', '102.4', '1.00%', '0.07|1.3'];
Basically I want for each of these values the number and the "type", so if it is a percentage then I would like to get -4.2 and percentage.
I tried to create a minimum example (however the below code is no real good example ;( ), but I am stuck at the data structure level as some array keys have two inputs, such as '0.74|2.6':
<?php
$valueArr = ['-4.2%', '51.0', '90K', '0.5%', '0.74|2.6', '-1.2B', '779B', '215K', '92.2%', '42.8B', '1.49T', '1690B', '-10.8B', '0.38|3.9', '102.4', '1.00%', '0.07|1.3'];
$resArr = array();
$structureArr = array(
'value1' => "",
'number1' => "",
'value2' => "",
'number2' => ""
);
foreach ($valueArr as $key => $v) {
if (1 === preg_match('/%/', $valueArr[$key])) {
preg_match('!\d+\.*\d*!', $valueArr[$key], $structureArr['number1']);
$structureArr['value1'] = 'percentage';
}
/*
if (1 === preg_match('|', $valueArr[$key])) {
$str = explode("|", $valueArr[$key]);
$value1 = 'number';
$number1 = $str[0];
$value2 = 'number';
$number2 = $str[1];
}
if (1 === preg_match('', $valueArr[$key])) {
}
*/
array_push($resArr, $structureArr);
}
print_r($resArr);
/*
Wanted Result
Array
(
[0] => Array
(
[0] => -4.2
[1] => 'percentage'
)
[1] => Array
(
[0] => 51.0
[1] => 'number'
)
[2] => Array
(
[0] => 90000
[1] => number
)
[3] => Array
(
[0] => 0.5
[1] => percentage
)
[4] => Array
(
[0] => 0.74
[1] => number
[2] => 2.6
[3] => number
)
...
*/
I would highly appreciate your input on how to structure this array input.
Appreciate your replies!

Answer 1

If you join the array on a space and replace pipes | with a space, then you have a list of numbers and their symbol (if any) separated by a space. Then just match your numbers and whatever symbol comes after it. Then you just match the number index with the symbol index. I used an array to map the symbol to the word and number if none:
$string = str_replace('|', ' ', implode(' ', $valueArr));
preg_match_all('/([\d.-]+)([^\s]*)/', $string, $matches);
$types = ['%'=>'percent','K'=>'thousand','M'=>'million','B'=>'billion','T'=>'trillion'];
foreach($matches[1] as $k => $v) {
$t = $types[$matches[2][$k]] ?? 'number';
$result[] = [$v, $t];
}
This yields an array like this, with each number that was joined by a pipe with it's own element:
Array
(
[0] => Array
(
[0] => -4.2
[1] => percent
)
[1] => Array
(
[0] => 51.0
[1] => number
)
[2] => Array
(
[0] => 90
[1] => thousand
)
///etc...
If you need a floating point number then just change:
$result[] = [(float)$v, $t];

Answer 2

This expands on my comment. Not sure if it's the most optimal solution or not.
Rough outline...
Create array mapping suffix to multiplier. Loop through source array. explode on |. Loop through result. If last character is %, strip it, value=value and type=percentage, else, strip last char, use it as array index (if it is an available index), value=value*multiplier and type=number.
$resArr = array();
$multipliers = array("K" => 1000, "M" => 1000000, "B" => 1000000000, "T" => 1000000000000);
$valueArr = ['-4.2%', '51.0', '90K', '0.5%', '0.74|2.6', '-1.2B', '779B', '215K', '92.2%', '42.8B', '1.49T', '1690B', '-10.8B', '0.38|3.9', '102.4', '1.00%', '0.07|1.3'];
foreach($valueArr as $index => $value)
{
$parts = explode("|", $value);
$resArr[$index] = array();
foreach($parts as $part)
{
$lastChar = substr($part, -1);
if($lastChar == "%")
{
$resArr[$index][] = substr($part, 0, -1);
$resArr[$index][] = "percentage";
}
else if(in_array($lastChar, array_keys($multipliers)))
{
$multiple = $multipliers[$lastChar];
$resArr[$index][] = (substr($part, 0, -1))*$multiple;
$resArr[$index][] = "number";
}
else
{
$resArr[$index][] = $part;
$resArr[$index][] = "number";
}
}
}
var_dump($resArr);
DEMO