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<?php class A { public $b; public $c; public function __construct() { $this->b = new B(); $this->c = new C(); } } class B { public $a; public function __construct() { $this->a = new A(); } } class C { } print_r(new A()); var_dump(new A()); var_export(new A());
Output for 7.4.0 - 7.4.25, 7.4.27 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.1, 8.2.18, 8.3.5 - 8.3.6
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/H0LE3 on line 21
Process exited with code 255.
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Out of memory (allocated 31457280 bytes) (tried to allocate 2097152 bytes) in /in/H0LE3 on line 10 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 8.1.2 - 8.1.27
Fatal error: Out of memory (allocated 31457280) (tried to allocate 2097152 bytes) in /in/H0LE3 on line 10 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 8.0.13
Fatal error: Out of memory (allocated 130023424) (tried to allocate 4096 bytes) in /in/H0LE3 on line 10 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.26
Fatal error: Out of memory (allocated 130023424) (tried to allocate 4096 bytes) in /in/H0LE3 on line 21 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/H0LE3 on line 10
Process exited with code 255.
Output for 7.1.0 - 7.1.7, 7.1.20 - 7.1.33
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 4096 bytes) in /in/H0LE3 on line 10
Process exited with code 255.
Output for 7.1.10

Process exited with code 137.
Output for 7.0.0 - 7.0.20
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 4194304 bytes) in /in/H0LE3 on line 10
Process exited with code 255.
Output for 5.6.0 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 130968 bytes) in /in/H0LE3 on line 10
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 130968 bytes) in /in/H0LE3 on line 21
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 523800 bytes) in /in/H0LE3 on line 21
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17

Process exited with code 139.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/H0LE3 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/H0LE3 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/H0LE3 on line 5
Process exited with code 255.
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