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<?php $tempFile = new \SplTempFileObject(); $tempFile->fwrite('foobar-'); $tempFile->rewind(); echo (string) $tempFile; echo PHP_EOL; echo $tempFile->__toString();
Output for 5.3.22 - 5.3.29, 5.4.7 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.6, 8.1.14 - 8.1.28, 8.2.1 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
foobar- foobar-
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 foobar- foobar-
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.13, 8.2.0
foobar- Fatal error: Uncaught RuntimeException: Cannot read from file php://temp in /in/9HuIJ:10 Stack trace: #0 /in/9HuIJ(10): SplFileObject->__toString() #1 {main} thrown in /in/9HuIJ on line 10
Process exited with code 255.
Output for 5.3.0 - 5.3.21, 5.4.0 - 5.4.6
php://temp foobar-
Output for 5.1.4 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/9HuIJ on line 4 php://temp foobar-
Output for 5.1.2 - 5.1.3
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/9HuIJ on line 4 Fatal error: Uncaught exception 'RuntimeException' with message 'SplTempFileObject::__construct(php://temp): failed to open stream: Inappropriate ioctl for device' in /in/9HuIJ:4 Stack trace: #0 /in/9HuIJ(4): SplTempFileObject->__construct() #1 {main} thrown in /in/9HuIJ on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/9HuIJ on line 4 Fatal error: Class 'SplTempFileObject' not found in /in/9HuIJ on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/9HuIJ on line 4 Fatal error: Cannot instantiate non-existent class: spltempfileobject in /in/9HuIJ on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/9HuIJ on line 4 Fatal error: Cannot instantiate non-existent class: spltempfileobject in /in/9HuIJ on line 4

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