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<?php $objs = json_decode('"obj":{"a":{"key":"a", "value":2, "index":1}, "b":{"key":"b", "value":3, "index":2}}', true); var_dump($objs); $objs = array_column($objs, null, "key"); $objs['a']['value'] = 5; var_dump($objs);
Output for 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
NULL Fatal error: Uncaught TypeError: array_column(): Argument #1 ($array) must be of type array, null given in /in/W3eQ9:5 Stack trace: #0 /in/W3eQ9(5): array_column(NULL, NULL, 'key') #1 {main} thrown in /in/W3eQ9 on line 5
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 NULL Fatal error: Uncaught TypeError: array_column(): Argument #1 ($array) must be of type array, null given in /in/W3eQ9:5 Stack trace: #0 /in/W3eQ9(5): array_column(NULL, NULL, 'key') #1 {main} thrown in /in/W3eQ9 on line 5
Process exited with code 255.
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
NULL Warning: array_column() expects parameter 1 to be array, null given in /in/W3eQ9 on line 5 array(1) { ["a"]=> array(1) { ["value"]=> int(5) } }
preferences:
211.85 ms | 403 KiB | 287 Q