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<?php function arrayWithThree($b=[]) { return [...$b, 3]; } function appendWithReassign($c = []) { return arrayWithThree($c1 = []); } function appendWithoutReassign($c = []) { return arrayWithThree($c); } $a= [1]; echo 'a with three: '.var_export(appendWithReassign($a), true) . ' without reassign: '.var_export(appendWithoutReassign($a), true);
Output for git.master_jit, git.master
a with three: array ( 0 => 3, ) without reassign: array ( 0 => 1, 1 => 3, )

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