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<?php $your_string = 'Hi'; $your_length = 18; var_export( explode("\n", wordwrap($your_string, $your_length)) ); echo "\n---\n"; var_export( preg_split("/.{0,{$your_length}}\K(?:\s+|$)/", $your_string, 0, PREG_SPLIT_NO_EMPTY) );
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