<?php

$html1 = 'https://www.emag.ro/monitor-curbat-gaming-led-va-samsung-odyssey-23-5-144-hz-freesync-full-hd-display-port-negru-lc24rg50fquxen/pd/DGJ20RBBM/';
$html = 'https://www.vivre.ro/p-1334458/saltea_optimax_160x200_cm';
$dom = new DomDocument();
$dom->loadHTMLFile($html);
$finder = new DomXPath($dom);
$pret_mic = $finder->query('//a');
var_dump($pret_mic);
exit;
foreach ($pret_mic as $p) {
    $var1 = $p->nodeValue;
    $sup = $finder->query(".//sup", $p);
    foreach ($sup as $s) {
        $var2_mic = $s->nodeValue;
    }
    $pret_final1 = str_replace($var2_mic, '', $var1);
    $pret_final = str_replace('Lei', '', $pret_final1);
}
$pret_mare = $finder->query('//div[@class="product-highlight product-page-pricing"]//p[@class="product-old-price"]');
foreach ($pret_mare as $pm) {
    $var1 = $pm->nodeValue;
    $sup = $finder->query(".//sup", $p);
    foreach ($sup as $s) {
        $var2 = $s->nodeValue;
    }
    foreach ($supp as $sp) {
        $var3 = $sp->nodeValue;
    }
    $pret_mare1 = str_replace(array($var2, $var3), '', $var1);
    $pret_mare = str_replace('Lei', '', $pret_mare1);
}
$data_produs = array('pret_initial' => $pret_final . ',' . $var2, 'pret_produs' => $pret_final . ',' . $var2_mic);
$data = json_encode($data_produs);
var_dump($data);