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<?php $toppings1 = array("Pepperoni", "Cheese", "Anchovies", "Tomatoes"); $toppings2 = array("Ham", "Cheese", "Peppers"); $inttoppings = array_intersect($toppings1, $toppings2); $difftoppings = array_diff($toppings1, $toppings2); $bothtoppings = array_merge($toppings1, $toppings2); var_dump($inttoppings); var_dump($difftoppings); var_dump($bothtoppings); ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 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 - 7.2.33, 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(1) { [1]=> string(6) "Cheese" } array(3) { [0]=> string(9) "Pepperoni" [2]=> string(9) "Anchovies" [3]=> string(8) "Tomatoes" } array(7) { [0]=> string(9) "Pepperoni" [1]=> string(6) "Cheese" [2]=> string(9) "Anchovies" [3]=> string(8) "Tomatoes" [4]=> string(3) "Ham" [5]=> string(6) "Cheese" [6]=> string(7) "Peppers" }
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(1) { [1]=> string(6) "Cheese" } array(3) { [0]=> string(9) "Pepperoni" [2]=> string(9) "Anchovies" [3]=> string(8) "Tomatoes" } array(7) { [0]=> string(9) "Pepperoni" [1]=> string(6) "Cheese" [2]=> string(9) "Anchovies" [3]=> string(8) "Tomatoes" [4]=> string(3) "Ham" [5]=> string(6) "Cheese" [6]=> string(7) "Peppers" }

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284.66 ms | 402 KiB | 459 Q