Flow PHP

SaveMode : string

Cases

Append  = 'append'

If data sink already exists, data will be appended, this solution might cause data duplication since it's not check if given rows already existed.

ExceptionIfExists  = 'exception_if_exists'

If data sink already exists error will be thrown.

Ignore  = 'ignore'

If data sink already exists, writing will be skipped.

Overwrite  = 'overwrite'

If data sink already exists, it will be removed and written again.

Methods

admits()  : bool

Whether a write into $glob goes ahead, decided once for the whole destination: Ignore over an existing file answers false, ExceptionIfExists over an existing file throws, Append beside a regular file at the static root of a pattern throws. Hidden paths below the static root (another write's temporary output) are not files of the destination.

replaces()  : bool