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<?php $text = "Hello, Mr. James. How are you today."; var_export( preg_split('~(?:Mrs?|Miss|Ms|Prof|Rev|Col|Dr)[.?!:](*SKIP)(*F)|[.?!:]+\K\s+~', $text, 0, PREG_SPLIT_NO_EMPTY) );

This is an error 500

Value for `_results` contains invalid data `array`


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