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<?php $sentence = 'Jumpy Qbert grawlix'; $usage = count_chars(strtolower($sentence), 3); $alphabet = range('a', 'z'); var_export([ 'Sentence' => $sentence, 'Total Length' => strlen($sentence), 'Alphabetical Length' => preg_match_all('~[a-z]~', $sentence, $letters), 'Unused Letters' => array_diff($alphabet, $letters), 'Duplicated Letters' => array_diff(array_count_values($letters), [1]), ]);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Array to string conversion in /in/IUTV1 on line 10 Warning: array_count_values(): Can only count string and integer values, entry skipped in /in/IUTV1 on line 11 array ( 'Sentence' => 'Jumpy Qbert grawlix', 'Total Length' => 19, 'Alphabetical Length' => 15, 'Unused Letters' => array ( 0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd', 4 => 'e', 5 => 'f', 6 => 'g', 7 => 'h', 8 => 'i', 9 => 'j', 10 => 'k', 11 => 'l', 12 => 'm', 13 => 'n', 14 => 'o', 15 => 'p', 16 => 'q', 17 => 'r', 18 => 's', 19 => 't', 20 => 'u', 21 => 'v', 22 => 'w', 23 => 'x', 24 => 'y', 25 => 'z', ), 'Duplicated Letters' => array ( ), )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Array to string conversion in /in/IUTV1 on line 10 Warning: array_count_values(): Can only count string and integer values, entry skipped in /in/IUTV1 on line 11 array ( 'Sentence' => 'Jumpy Qbert grawlix', 'Total Length' => 19, 'Alphabetical Length' => 15, 'Unused Letters' => array ( 0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd', 4 => 'e', 5 => 'f', 6 => 'g', 7 => 'h', 8 => 'i', 9 => 'j', 10 => 'k', 11 => 'l', 12 => 'm', 13 => 'n', 14 => 'o', 15 => 'p', 16 => 'q', 17 => 'r', 18 => 's', 19 => 't', 20 => 'u', 21 => 'v', 22 => 'w', 23 => 'x', 24 => 'y', 25 => 'z', ), 'Duplicated Letters' => array ( ), )
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.3.33, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Array to string conversion in /in/IUTV1 on line 10 Warning: array_count_values(): Can only count STRING and INTEGER values! in /in/IUTV1 on line 11 array ( 'Sentence' => 'Jumpy Qbert grawlix', 'Total Length' => 19, 'Alphabetical Length' => 15, 'Unused Letters' => array ( 0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd', 4 => 'e', 5 => 'f', 6 => 'g', 7 => 'h', 8 => 'i', 9 => 'j', 10 => 'k', 11 => 'l', 12 => 'm', 13 => 'n', 14 => 'o', 15 => 'p', 16 => 'q', 17 => 'r', 18 => 's', 19 => 't', 20 => 'u', 21 => 'v', 22 => 'w', 23 => 'x', 24 => 'y', 25 => 'z', ), 'Duplicated Letters' => array ( ), )
Output for 7.3.32, 7.4.26
Warning: array_count_values(): Can only count STRING and INTEGER values! in /in/IUTV1 on line 11 array ( 'Sentence' => 'Jumpy Qbert grawlix', 'Total Length' => 19, 'Alphabetical Length' => 15, 'Unused Letters' => array ( 0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd', 4 => 'e', 5 => 'f', 6 => 'g', 7 => 'h', 8 => 'i', 9 => 'j', 10 => 'k', 11 => 'l', 12 => 'm', 13 => 'n', 14 => 'o', 15 => 'p', 16 => 'q', 17 => 'r', 18 => 's', 19 => 't', 20 => 'u', 21 => 'v', 22 => 'w', 23 => 'x', 24 => 'y', 25 => 'z', ), 'Duplicated Letters' => array ( ), )

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