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<?php class Foo { readonly int $y; public function test(&$x) { $x = 4; } public function init() { $this->test($this->y); } } $a = new Foo(); $a->init(); var_dump($a);
Output for 8.1.9 - 8.1.33, 8.2.0 - 8.2.29, 8.3.5 - 8.3.28, 8.4.3 - 8.4.14, 8.5.0
Fatal error: Uncaught Error: Cannot indirectly modify readonly property Foo::$y in /in/ghZR5:11 Stack trace: #0 /in/ghZR5(15): Foo->init() #1 {main} thrown in /in/ghZR5 on line 11
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.1.0 - 8.1.8
Fatal error: Uncaught Error: Cannot access uninitialized non-nullable property Foo::$y by reference in /in/ghZR5:11 Stack trace: #0 /in/ghZR5(15): Foo->init() #1 {main} thrown in /in/ghZR5 on line 11
Process exited with code 255.
Output for 8.0.1 - 8.0.28
Parse error: syntax error, unexpected identifier "readonly", expecting "function" or "const" in /in/ghZR5 on line 4
Process exited with code 255.
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