3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('2013-02-01','2000-02-01','2016-02-17','0000-00-00','0000-00-00','0000-00-00'); sort( $arr ); usort( $arr, function( $a, $b ) { if ( $a === $b ) return 0; if ( strpos( $b, '0000' ) !== false ) return -1; return ( $a < $b ) ? -1 : 1; }); print_r( $arr );
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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 - 8.5.1
Array ( [0] => 0000-00-00 [1] => 0000-00-00 [2] => 0000-00-00 [3] => 2000-02-01 [4] => 2013-02-01 [5] => 2016-02-17 )
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.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Array ( [0] => 2000-02-01 [1] => 2013-02-01 [2] => 2016-02-17 [3] => 0000-00-00 [4] => 0000-00-00 [5] => 0000-00-00 )
preferences:
206.12 ms | 409 KiB | 5 Q