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<?php $reflection = new ReflectionFunction('\hash_update_file'); foreach ($reflection->getParameters() as $parameter) { echo sprintf('$%s', $parameter->getName()) . PHP_EOL; }
Output for 7.1.23 - 7.1.33, 7.2.11 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
$context $filename $stream_context
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 $context $filename $stream_context
Output for 5.3.1 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.22, 7.2.0 - 7.2.10
$context $filename $context
Output for 5.0.3 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0
Fatal error: Uncaught exception 'ReflectionException' with message 'Function \hash_update_file() does not exist' in /in/Xb0V7:2 Stack trace: #0 /in/Xb0V7(2): ReflectionFunction->__construct('\hash_update_fi...') #1 {main} thrown in /in/Xb0V7 on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.2
Fatal error: Uncaught exception 'ReflectionException' with message 'Function \hash_update_file() does not exist' in /in/Xb0V7:2 Stack trace: #0 {main} thrown in /in/Xb0V7 on line 2
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: reflectionfunction in /in/Xb0V7 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: reflectionfunction in /in/Xb0V7 on line 2

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