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@ 2021-09-24T13:54:30Z

<?php
$prices = array(
    'label' => 'Price',
    'count' => 5,
    'attribute_code' => 'price',
    'options' => array(
            0 => array(
                    'label' => '0-100',
                    'value' => '0_100',
                    'count' => 2208,
                ),
            1 => array(
                    'label' => '100-200',
                    'value' => '100_200',
                    'count' => 338,
                ),
            2 => array(
                    'label' => '200-300',
                    'value' => '200_300',
                    'count' => 16,
                ),
            3 => array(
                    'label' => '300-400',
                    'value' => '300_400',
                    'count' => 1,
                ),
            4 => array(
                    'label' => '400-500',
                    'value' => '400_500',
                    'count' => 1,
                ),
        )
);
$count = array_sum(array_column($prices['options'], 'count'));
$minmax = array_map(
	function($option){
		$split=explode('_',$option['value']);
		return [(int)$split[0],(int)$split[1]];
		},
	$prices['options']
);
$min=min(array_column($minmax,0));
$max=max(array_column($minmax,1));
$prices['options'] = [
    'label' => $min . '-' . $max,
    'value' => $min . '_' . $max,
    'count' => $count
];

echo print_r($prices,true);

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.4, 8.3.6 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.7: Array ( [label] => Price [count] => 5 [attribute_code] => price [options] => Array ( [label] => 0-500 [value] => 0_500 [count] => 2564 ) )
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [label] => Price [count] => 5 [attribute_code] => price [options] => Array ( [label] => 0-500 [value] => 0_500 [count] => 2564 ) )

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