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<?php function &random_value(&$array, $default=null) { $k = 0; // mt_rand(0, count($array) - 1); if (isset($array[$k])) { return $array[$k]; } else { return $default; } } $companies = array(); $companies[] = array("name" => "Acme Co", "employees"=> array( "John", "Jane" )); $companies[] = array("name" => "Inotech", "employees"=> array( "Bill", "Michael" )); $x = &random_value($companies); $x["employees"][] = "Donald"; var_dump($x, $companies);
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(2) { ["name"]=> string(7) "Acme Co" ["employees"]=> array(3) { [0]=> string(4) "John" [1]=> string(4) "Jane" [2]=> string(6) "Donald" } } array(2) { [0]=> &array(2) { ["name"]=> string(7) "Acme Co" ["employees"]=> array(3) { [0]=> string(4) "John" [1]=> string(4) "Jane" [2]=> string(6) "Donald" } } [1]=> array(2) { ["name"]=> string(7) "Inotech" ["employees"]=> array(2) { [0]=> string(4) "Bill" [1]=> string(7) "Michael" } } }
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(2) { ["name"]=> string(7) "Acme Co" ["employees"]=> array(3) { [0]=> string(4) "John" [1]=> string(4) "Jane" [2]=> string(6) "Donald" } } array(2) { [0]=> &array(2) { ["name"]=> string(7) "Acme Co" ["employees"]=> array(3) { [0]=> string(4) "John" [1]=> string(4) "Jane" [2]=> string(6) "Donald" } } [1]=> array(2) { ["name"]=> string(7) "Inotech" ["employees"]=> array(2) { [0]=> string(4) "Bill" [1]=> string(7) "Michael" } } }

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