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<?php var_export(preg_split('~~', 'abcdefghijklm', 3)); echo "\n---\n"; var_export(preg_split('~(?=.)~', 'abcdefghijklm', 3));
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => '', 1 => 'a', 2 => 'bcdefghijklm', ) --- array ( 0 => '', 1 => 'a', 2 => 'bcdefghijklm', )

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