I suggest adding the old version of converters/pecl-igbinary, as 3.x.x does not work with PHP 5.6.
The shell archive below contains a copy of the relevant files for your consideration:
# This is a shell archive. Save it in a file, remove anything before
# this line, and then unpack it by entering "sh file". Note, it may
# create directories; files and directories will be owned by you and
# have default permissions.
#
# This archive contains:
#
# pecl-igbinary
# pecl-igbinary/Makefile
# pecl-igbinary/distinfo
# pecl-igbinary/pkg-descr
#
echo c - pecl-igbinary
mkdir -p pecl-igbinary > /dev/null 2>&1
echo x - pecl-igbinary/Makefile
sed 's/^X//' >pecl-igbinary/Makefile << 'd510327e553c66fb83584eead3e52675'
X# Created by: Gea-Suan Lin <gslin@gslin.org>
X# $FreeBSD: head/converters/pecl-igbinary/Makefile 496488 2019-03-21 19:40:21Z sunpoet $
X
XPORTNAME= igbinary
XPORTVERSION= 2.0.8
XCATEGORIES= converters
X
XMAINTAINER= sunpoet@FreeBSD.org
XCOMMENT= Replacement for the standard PHP serializer
X
XLICENSE= BSD3CLAUSE
XLICENSE_FILE= ${WRKSRC}/COPYING
X
XUSES= php:pecl
X
Xpost-patch:
X @${CP} ${WRKSRC}/src/php7/igbinary.h ${WRKSRC}/igbinary.h
X @${CP} ${WRKSRC}/src/php7/php_igbinary.h ${WRKSRC}/php_igbinary.h
X
X.include <bsd.port.mk>
d510327e553c66fb83584eead3e52675
echo x - pecl-igbinary/distinfo
sed 's/^X//' >pecl-igbinary/distinfo << 'ab0d3bb744f1cd0217eb0915bd0631d8'
XTIMESTAMP = 1540136617
XSHA256 (PECL/igbinary-2.0.8.tgz) = bacbab1172e073b1857dc07a486bfdaca6d60fbed678ce0f4b37cd018ef5b680
XSIZE (PECL/igbinary-2.0.8.tgz) = 76708
ab0d3bb744f1cd0217eb0915bd0631d8
echo x - pecl-igbinary/pkg-descr
sed 's/^X//' >pecl-igbinary/pkg-descr << '35623989af1ca6510c247af4ce52369d'
XIgbinary is a drop in replacement for the standard PHP serializer.
XInstead of time and space consuming textual representation, igbinary
Xstores PHP data structures in a compact binary form. Savings are
Xsignificant when using memcached or similar memory based storages for
Xserialized data.
X
XWWW: https://pecl.php.net/package/igbinary
35623989af1ca6510c247af4ce52369d
exit
I suggest adding the old version of converters/pecl-igbinary, as 3.x.x does not work with PHP 5.6.
The shell archive below contains a copy of the relevant files for your consideration: