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<?php $o1 = new stdClass(); $o1->id = 123; $o1->title = 'test'; $o2 = new stdClass(); $o2->id = 456; $o2->title = 'test2'; $arrofobjects = [ $o1,$o2 ]; var_dump($arrofobjects); $newArr = array_map(function($obj) { return [$obj->id => $obj->title]; }, $arrofobjects); var_dump($newArr);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> object(stdClass)#1 (2) { ["id"]=> int(123) ["title"]=> string(4) "test" } [1]=> object(stdClass)#2 (2) { ["id"]=> int(456) ["title"]=> string(5) "test2" } } array(2) { [0]=> array(1) { [123]=> string(4) "test" } [1]=> array(1) { [456]=> string(5) "test2" } }

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