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@ 2018-09-22T13:26:12Z

<?php
$reflection = new ReflectionFunction('\hash_update_file');

foreach ($reflection->getParameters() as $parameter) {
    echo sprintf('$%s', $parameter->getName()) . PHP_EOL;
}

Output
Performance
VLD
References
Branches

sprintf: documentation ( source)

preferences:dark modelive previewkey bindings

50.64 ms | 2626 KiB | 5 Q