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<?php $fooList = [10, 20, 30, 40, 50, 60]; $barList = []; foreach ($fooList as &$fooItem) { $barList[] = &$fooItem; } var_dump($fooList); var_dump($barList);
Output for 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(6) { [0]=> &int(10) [1]=> &int(20) [2]=> &int(30) [3]=> &int(40) [4]=> &int(50) [5]=> &int(60) } array(6) { [0]=> &int(10) [1]=> &int(20) [2]=> &int(30) [3]=> &int(40) [4]=> &int(50) [5]=> &int(60) }
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(6) { [0]=> &int(10) [1]=> &int(20) [2]=> &int(30) [3]=> &int(40) [4]=> &int(50) [5]=> &int(60) } array(6) { [0]=> &int(10) [1]=> &int(20) [2]=> &int(30) [3]=> &int(40) [4]=> &int(50) [5]=> &int(60) }

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