<?php $urls = <<<URLS /ru949-mlc /ru949-mlc/ //ru949-mlc/ /fff/ru949-mlc /fff/ru949-mlc/ /fff/ru949-mlc/dededede URLS; // should match only last two urls $regex = <<<REGEX /(?!(^\/[a-z]{2}\d{3}\-[a-z]{3}\/))(\/(?<sku>[a-z]{2}\d{3}\-[a-z]{3})\/)/x REGEX; foreach (explode("\n", $urls) as $url) { $match = preg_match($regex, $url, $matches); print_r([$url, $match, $matches['sku'] ?? null]); } //
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