3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a_base = [ 'wop' => [ 'tik' => [ 'a' => 190, 'b' => 323, 'c' => 342 ], 'tak' => [ 'a' => 142, 'b' => 654, 'c' => 785 ] ], 'wap' => [ 'top' => [ 'a' => 564, 'b' => 667, 'c' => 968 ], 'top' => [ 'a' => 603, 'b' => 694, 'c' => 102 ] ] ]; $a_addon = [ 'tok' => [ 'a' => 883, 'b' => 993, 'c' => 878 ] ]; $a_base['wop'] += $a_addon; var_export($a_base);
Output for 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array ( 'wop' => array ( 'tik' => array ( 'a' => 190, 'b' => 323, 'c' => 342, ), 'tak' => array ( 'a' => 142, 'b' => 654, 'c' => 785, ), 'tok' => array ( 'a' => 883, 'b' => 993, 'c' => 878, ), ), 'wap' => array ( 'top' => array ( 'a' => 603, 'b' => 694, 'c' => 102, ), ), )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 'wop' => array ( 'tik' => array ( 'a' => 190, 'b' => 323, 'c' => 342, ), 'tak' => array ( 'a' => 142, 'b' => 654, 'c' => 785, ), 'tok' => array ( 'a' => 883, 'b' => 993, 'c' => 878, ), ), 'wap' => array ( 'top' => array ( 'a' => 603, 'b' => 694, 'c' => 102, ), ), )

preferences:
140.74 ms | 403 KiB | 179 Q