<?php
 
$textRus = 'Пocтaвкa мяco гoвядины, бecкостнoe для нужд государственного бюджетного учреждения здравоохранения Республики Башкортостан Инфекционная клиническая больница № 4 города Уфа';
$textEng = 'Grеedy b*tсhes';
$matches = array();
$words = array();
 
$regexp = '/ [^ ]+ /u';
$regexpRus = '/([а-яёА-ЯЁ])([e|E|T|y|o|O|p|P|a|H|K|x|X|c|C|B|M])([а-яёА-ЯЁ])/u';
$regexpEng = '/([a-zA-Z])([е|Е|Т|у|о|О|р|Р|а|Н|К|х|Х|с|С|В|М])([a-zA-Z])/u';
$resultRus = preg_replace($regexpRus, '$1[$2]$3', $textRus);
echo "Русский текст: {$resultRus}\n";
$resultEng = preg_replace($regexpEng, '$1[$2]$3', $textEng);
echo "Английский текст: {$resultEng}\n";
 
// your code goes here

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