PHP Array of Price Ranges - Retrieve the lowest and highest - php

Question

I'm working with a PHP array that shows a range of prices, where an individual item is in the form of "price from-price to". Here's an example of the array:
Array
(
[0] => $625,000-$700,000
[1] => $550,000-$625,000
[2] => $1,000,000-$1,250,000
[3] => $925,000-$1,000,000
)
I now need to retrieve the lowest and highest price in the array, however as they are a range I first need to pull apart each price in each array item. For example using the above array I would like to be able to return something like this:
$minPrice = 550000;
$maxPrice = 1250000;
I'm new to PHP and completely stumped at this point about how to go about parsing each of the values from each array item then getting the lowest/highest value.

Answer 1

I would put all the normalized prices in an array and use the php max, min functions.
<?php
$ranges = array(
"$625,000-$700,000",
"$550,000-$625,000",
"$1,000,000-$1,250,000",
"$925,000-$1,000,000",
);
$prices = array();
foreach ($ranges as $range) {
$prices = array_merge($prices, explode("-", preg_replace("/[\\$,]/i", "", $range)));
}
$maxPrice = max($prices);
$minPrice = min($prices);

Answer 2

try this:
$array = Array
(
0 => '$625,000-$700,000',
1 => '$550,000-$625,000',
2 => '$1,000,000-$1,250,000',
3 => '$925,000-$1,000,000',
);
$tmp = array();
foreach($array as $key=>$value){
$cleanValue = explode('-', str_replace(array('$',','), array('',''), $value));
foreach($cleanValue as $k=>$v){
$tmp[] = $v;
}
}
$minValue = min($tmp);
$maxValue = max($tmp);
echo $minValue . ' '. $maxValue;

Answer 3

Please refer code below.
First value are exploded to an array and then "$" is removed and then value is converted to integer. Then values are added to array and finally min / max functions are called.
$maxPrice = 0;
$max_curr = 0;
$price_arr = array();
foreach($min_maxs as $min_max){
$min_max_arr = explode("-",$min_max); // string to array
array_walk($min_max_arr,"remove_dollar_commas"); // remove "$"
$price_arr = array_merge($price_arr , $min_max_arr ); // add to final array
}
$maxPrice = max($price_arr); // call max function to get maximum value
$minPrice = min($price_arr); // call min function to get minimum value
function remove_dollar_commas(&$subject){
$subject = intval( str_replace(array("\$",","), "", $subject) );
}