Creates a new temporary file, without automatic cleanup
namespace HH\Lib\File; function leaky_temporary_file( string $prefix = 'hack-leakytmp-', string $suffix = '', ): CloseableReadWriteHandle;
File\temporary_file() is strongly recommended instead.
- If the prefix starts with
., it is interpreted relative to the current working directory.
- If the prefix statis with
/, it is treated as an absolute path.
- Otherwise, it is created in the system temporary directory.
Regardless of the kind of prefix, the parent directory must exist.
A suffix can optionally be provided; this is useful when you need a
particular filename extension; for example,
File\temporary_file('foo', '.txt') may create
The temporary file:
- will be a new file (i.e.
O_CREAT | O_EXCL)
- be owned by the current user
- be created with mode 0600
- will not be automatically deleted
string $prefix = 'hack-leakytmp-'
string $suffix = ''