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<?php $str = 'Fry me a Beaver. Fry me a Beaver! Fry me a Beaver? Fry me Beaver no. 4?! Fry me many Beavers... End'; var_export( preg_split('~[.?!]+\K\s+(?=[A-Z])~', $str, 0, PREG_SPLIT_NO_EMPTY) );
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100.31 ms | 405 KiB | 5 Q