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<?php $string = 'Hello. A question? How strange! Maybe even surreal!? Who knows.'; var_export( preg_split( '/(!\?|[!?.])/', $string, 0, PREG_SPLIT_DELIM_CAPTURE ) ); echo "\n\n"; var_export( preg_split( '/(!\?|[!?.])/', $string, -1, PREG_SPLIT_DELIM_CAPTURE ) ); echo "\n\n"; var_export( preg_split( '/(!\?|[!?.])/', $string, null, PREG_SPLIT_DELIM_CAPTURE ) );
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', ) array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', ) Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/LioCd on line 28 array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', )
Output for 8.1.0 - 8.1.33
array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', ) array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', ) Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/LioCd on line 32 array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', )
Output for 8.0.1 - 8.0.30
array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', ) array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', ) array ( 0 => 'Hello', 1 => '.', 2 => ' A question', 3 => '?', 4 => ' How strange', 5 => '!', 6 => ' Maybe even surreal', 7 => '!?', 8 => ' Who knows', 9 => '.', 10 => '', )

preferences:
102.94 ms | 411 KiB | 5 Q