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<?php $password = 'YourPassword!++123,?@#$%'; $specialCharacters = preg_match_all('/[!@#$%^&*()_-+={};:,.?\\|~]/', '', $password); $clearing = preg_replace('/[^a-zA-Z0-9]/', '', $specialCharacters); echo $clearing; $text = "abc12!!!3< >"; $pattern = '/[^\+\*\?\[\]\^\\$\(\)\{\}\=\!]*/'; if (preg_match_all($pattern, $text)) { echo "Строка соответствует регулярному выражению."; } else { echo "Строка не соответствует регулярному выражению."; }
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