Online PHP editor | output for EQ2s3

Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12: Deprecated: usort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in /in/EQ2s3 on line 8 Array ( [0] => Array ( [twitter_enabled] => 1 [twitter_url] => https://www.twitter.com/ [twitter_order] => 3 ) [1] => Array ( [facebook_enabled] => 1 [facebook_url] => https://www.facebook.com/ [facebook_order] => 7 ) )
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33: Deprecated: usort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in /in/EQ2s3 on line 12 Array ( [0] => Array ( [twitter_enabled] => 1 [twitter_url] => https://www.twitter.com/ [twitter_order] => 3 ) [1] => Array ( [facebook_enabled] => 1 [facebook_url] => https://www.facebook.com/ [facebook_order] => 7 ) )
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Array ( [0] => Array ( [twitter_enabled] => 1 [twitter_url] => https://www.twitter.com/ [twitter_order] => 3 ) [1] => Array ( [facebook_enabled] => 1 [facebook_url] => https://www.facebook.com/ [facebook_order] => 7 ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/EQ2s3 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/EQ2s3 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/EQ2s3 on line 3
Process exited with code 255.