Flow PHP

__construct()

Parameters

$matcher : Matcher

$exclude : bool = true

when true (default) a match drops the signal; when false only matching signals are kept

$sources : array<int, AttributeSource> = [AttributeSource::SIGNAL]

attribute sets to inspect; the matcher is OR-combined across them (defaults to the signal's own attributes)

$cacheDir : null|string = null

directory for the generated matcher file (defaults to the system temp directory). It is required, so it MUST be trusted - not writable by untrusted users. Prefer an application-private directory over the shared system temp in multi-tenant environments.

$cacheDirPermissions : int = 0700

mode applied when the cache directory is created (octal, subject to umask; defaults to 0700 - owner only, since the directory holds required PHP)

dropFunction()

The compiled drop decision: true when a signal carrying the given per-source attributes should be dropped. Pass one {@see Attributes} per configured source (see {@see self::sources()}); the matcher is OR-combined across them. Processors hold this closure and call it directly to skip the {@see self::shouldDrop()} method-call layer on the hot path.

shouldDrop()

True when a signal carrying these per-source attributes should be dropped.

Parameters

$perSource : Attributes

sources()