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<?php var_dump(pathinfo('/home/user/backup.2021-05-24/'));
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(4) { ["dirname"]=> string(10) "/home/user" ["basename"]=> string(17) "backup.2021-05-24" ["extension"]=> string(10) "2021-05-24" ["filename"]=> string(6) "backup" }

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122.52 ms | 403 KiB | 152 Q