<?php
//Поиск разных ошибок в тексте
$text = ',жызнь сдесь зделал зделан но,  а, антракт. Не черный, а красный.';
$matches = array();
 
$error1 = '/([,;!?:]\\S)/ui';
$error2 = '/жы|шы/ui';
$error3 = '/координально|сдесь|здела(л|ю|н)/ui';
$error4 = '/[^,]\\b(а|но)\\b/ui';
 
$errors = array($error1, $error2, $error3, $error4);
 
for ($i = 0; $i < count($errors); $i++) {
    if (preg_match($errors[$i], $text)) {
        echo "Вы ошиблись в этом месте: " . preg_replace($errors[$i], '[$0]', $text) . "\n";
    }
}

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