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<?php class SomeObject implements JsonSerializable { public string $placeholder = 'hallo'; public string $id; public string $model; public string $value; public bool $disabled; public bool $required; public function jsonSerialize(): mixed { return array_map( fn($value) => $value ?? '', array_merge( get_class_vars(__CLASS__), get_object_vars($this) ) ); } } class MainObject implements JsonSerializable { public string $mainName; public SomeObject $someObject; public function __construct() { $this->mainName = (new ReflectionClass(MainObject::class))->getShortName(); $this->someObject = new SomeObject(); } public function jsonSerialize(): mixed { return get_object_vars($this); } } $main = new MainObject; echo json_encode($main, JSON_PRETTY_PRINT);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.4, 8.3.6 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
{ "mainName": "MainObject", "someObject": { "placeholder": "hallo", "id": "", "model": "", "value": "", "disabled": "", "required": "" } }
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
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 { "mainName": "MainObject", "someObject": { "placeholder": "hallo", "id": "", "model": "", "value": "", "disabled": "", "required": "" } }
Output for 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Return value of MainObject::jsonSerialize() must be an instance of mixed, array returned in /in/mm8Ss:35 Stack trace: #0 [internal function]: MainObject->jsonSerialize() #1 /in/mm8Ss(40): json_encode(Object(MainObject), 128) #2 {main} thrown in /in/mm8Ss on line 35
Process exited with code 255.
Output for 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'string' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/mm8Ss on line 4
Process exited with code 255.
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