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<?php $objs = json_decode('"obj":{"a":{"key":"a", value:2}, "b":{"key":"b", value:3}}', true); var_dump($objs); $objs = array_column($objs, null, "key"); $objs['a']['value'] = 5; var_dump($objs);
Output for git.master, git.master_jit, rfc.property-hooks
NULL Fatal error: Uncaught TypeError: array_column(): Argument #1 ($array) must be of type array, null given in /in/fvZ8pu:5 Stack trace: #0 /in/fvZ8pu(5): array_column(NULL, NULL, 'key') #1 {main} thrown in /in/fvZ8pu on line 5
Process exited with code 255.

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