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run code in 300+ PHP versions simultaneously
<?php class A { /** @var B $b */ private $b; public function __construct() { $this->b = new B($this); } public function getB() { return $this->b; } } class B { /** @var A $a */ private $a; /** @var A $a */ public function __construct(A $a) { $this->a = $a; } } $a = new A(); $b = new B($a); var_dump($a); var_dump($a->getB());
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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
object(A)#1 (1) { ["b":"A":private]=> object(B)#2 (1) { ["a":"B":private]=> *RECURSION* } } object(B)#2 (1) { ["a":"B":private]=> object(A)#1 (1) { ["b":"A":private]=> *RECURSION* } }
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.
preferences:
191.53 ms | 407 KiB | 5 Q