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run code in 150+ php & hhvm versions
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<?php $string = "this is my my word with new word"; //echo count(str_word_count($string)); echo unique_word_count($string); function unique_word_count($string) { //$string = explode(' ', strtolower($string)); //$string = str_word_count($string, 1); $string = preg_split('\s', strtolower($string)); $words = array_unique($string); return count($words); }
Output for 5.3.0 - 7.1.0
Warning: preg_split(): Delimiter must not be alphanumeric or backslash in /in/IY8Bc on line 11 Warning: array_unique() expects parameter 1 to be array, boolean given in /in/IY8Bc on line 12 0
Output for 4.3.11 - 5.2.17
Warning: preg_split(): Delimiter must not be alphanumeric or backslash in /in/IY8Bc on line 11 Warning: array_unique(): The argument should be an array in /in/IY8Bc on line 12 1
Output for 4.3.2 - 4.3.10
Warning: Delimiter must not be alphanumeric or backslash in /in/IY8Bc on line 11 Warning: array_unique(): The argument should be an array in /in/IY8Bc on line 12 1
Output for 4.3.0 - 4.3.1
Warning: Delimiter must not be alphanumeric or backslash in /in/IY8Bc on line 11 Warning: array_unique() [http://www.php.net/function.array-unique]: The argument should be an array in /in/IY8Bc on line 12 1