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Categories / Php / Strings

 

Using preg_grep()

<? $text=<<<TEXT "asdf.asdf,asdf!asdf TEXT; $words = preg_split('/[",.!\s]/', $text, -1, PREG_SPLIT_NO_EMPTY); $double_letter_words = preg_grep('/([a-z])\\1/i',$words); foreach ($double_letter_words as $word) {     print "$word\n"; } ?>