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<?php $demo = [ (object) ['key' => 'a', 'xxx' => 'xxx'], (object) ['key' => 'b', 'xxx' => 'xxx'], (object) ['key' => 'c', 'xxx' => 'xxx'] ]; $result = array_combine(array_column($demo, 'key'), $demo); print_r($result);
Output for rfc.property-hooks, git.master, git.master_jit
Array ( [a] => stdClass Object ( [key] => a [xxx] => xxx ) [b] => stdClass Object ( [key] => b [xxx] => xxx ) [c] => stdClass Object ( [key] => c [xxx] => xxx ) )

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