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<?php $f = new SplFileObject('php://memory', 'rw'); $f->fwrite("A\nB"); var_dump($f->current(), (string) $f);
Output for 5.3.22 - 5.3.29, 5.4.7 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0, 8.1.14 - 8.1.27, 8.2.1 - 8.2.17, 8.3.0 - 8.3.4
string(0) "" string(0) ""
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.13, 8.2.0
Fatal error: Uncaught RuntimeException: Cannot read from file php://memory in /in/30v8r:5 Stack trace: #0 /in/30v8r(5): SplFileObject->__toString() #1 {main} thrown in /in/30v8r on line 5
Process exited with code 255.
Output for 7.2.29 - 7.2.33, 7.3.12 - 7.3.33
Fatal error: Method SplFileObject::__toString() must not throw an exception, caught RuntimeException: Cannot read from file php://memory in /in/30v8r on line 0
Process exited with code 255.
Output for 5.1.4 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.21, 5.4.0 - 5.4.6
string(0) "" string(12) "php://memory"
Output for 5.1.0 - 5.1.3
Fatal error: Uncaught exception 'RuntimeException' with message 'SplFileObject::__construct(php://memory): failed to open stream: Inappropriate ioctl for device' in /in/30v8r:3 Stack trace: #0 /in/30v8r(3): SplFileObject->__construct('php://memory', 'rw') #1 {main} thrown in /in/30v8r on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Class 'SplFileObject' not found in /in/30v8r on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: splfileobject in /in/30v8r on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: splfileobject in /in/30v8r on line 3

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