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<?php #[AllowDynamicProperties] class Scratch_1 { } $new = new Scratch_1(); $prop = 'Content-Type'; $new->$prop = 'application/json'; var_dump($new->$prop); // string(16) "application/json" var_dump($new->{'Content-Type'}); $$prop = 'application/json'; var_dump($$prop); // string(16) "application/json" $prop = '10xl'; $new->$prop = '10xl'; var_dump($new->$prop); // string(3) "10xl" var_dump($new); var_dump(get_defined_vars()['Content-Type']); var_dump(${"Content-Type"});
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
string(16) "application/json" string(16) "application/json" string(16) "application/json" string(4) "10xl" object(Scratch_1)#1 (2) { ["Content-Type"]=> string(16) "application/json" ["10xl"]=> string(4) "10xl" } string(16) "application/json" string(16) "application/json"
preferences:
55.41 ms | 1015 KiB | 4 Q