You are viewing the version of this documentation from Perl blead. This is the main development branch of Perl. (git commit 86ea31b65132ecc5452c02831d7bcb8743ab67f4)
if may also refer to the module: if
else
elsif
for
foreach
if
unless
until
while

These flow-control keywords are documented in "Compound Statements" in perlsyn.