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<?php $array1 = [ '0' => '2018-08-21 10:00:00', '1' => '2018-08-28 10:00:00', '2' => '2018-09-04 10:00:00', '3' => '2018-09-11 10:00:00', '4' => '2018-09-18 10:00:00', ]; $array2 = [ '0' => '2018-08-21 10:00:00', '1' => '2018-08-28 10:00:00', '2' => '2018-09-04 10:00:00', '3' => '2018-09-11 10:00:00', '4' => '2018-09-18 10:00:00', '5' => '2019-09-18 10:00:00', ]; $diff = array_diff($array2, $array1); var_dump($array1, $array2, $diff);
Output for 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
array(5) { [0]=> string(19) "2018-08-21 10:00:00" [1]=> string(19) "2018-08-28 10:00:00" [2]=> string(19) "2018-09-04 10:00:00" [3]=> string(19) "2018-09-11 10:00:00" [4]=> string(19) "2018-09-18 10:00:00" } array(6) { [0]=> string(19) "2018-08-21 10:00:00" [1]=> string(19) "2018-08-28 10:00:00" [2]=> string(19) "2018-09-04 10:00:00" [3]=> string(19) "2018-09-11 10:00:00" [4]=> string(19) "2018-09-18 10:00:00" [5]=> string(19) "2019-09-18 10:00:00" } array(1) { [5]=> string(19) "2019-09-18 10:00:00" }
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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