How do I include the split delimiter in results for preg_split()?

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Here you go:

preg_split('/([^.:!?]+[.:!?]+)/', 'good:news.everyone!', -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);

How it works: The pattern actually turns everything into a delimiter. Then, to include these delimiters in the array, you can use the PREG_SPLIT_DELIM_CAPTURE constant. This will return an array like:

array (
    0 => '',
    1 => 'good:',
    2 => '',
    3 => 'news.',
    4 => '',
    5 => 'everyone!',
    6 => '',
);

To get rid of the empty values, use PREG_SPLIT_NO_EMPTY. To combine two or more of these constants, we use the bitwise | operator. The result:

array (
    0 => 'good:',
    1 => 'news.',
    2 => 'everyone!'
);

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