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DocumentationHSLReferenceFunctionHH\Lib\OS\write

HH\Lib\OS\write

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This is available as OS\write in the www repository.

Write from the specified FileDescriptor

namespace HH\Lib\OS;

function write(
  FileDescriptor $fd,
  string $data,
): int;

See man 2 write for details. On error, an ErrnoException will be thrown.

Parameters

  • FileDescriptor $fd
  • string $data

Returns

  • the - number of bytes written; it is possible for this function to succeed with a partial write.