Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
php56-php-dbg
php56-php-dbg(x86-64)

Requires :

libc.so.6()(64bit)
libc.so.6(GLIBC_2.11)(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.15)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.27)(64bit)
libc.so.6(GLIBC_2.3)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libc.so.6(GLIBC_2.7)(64bit)
libc.so.6(GLIBC_2.8)(64bit)
libcom_err.so.2()(64bit)
libcrypt.so.1()(64bit)
libcrypto.so.1.1()(64bit)
libcrypto.so.1.1(OPENSSL_1_1_0)(64bit)
libdl.so.2()(64bit)
libdl.so.2(GLIBC_2.2.5)(64bit)
libedit.so.0()(64bit)
libgssapi_krb5.so.2()(64bit)
libk5crypto.so.3()(64bit)
libkrb5.so.3()(64bit)
liblzma.so.5()(64bit)
libm.so.6()(64bit)
libm.so.6(GLIBC_2.2.5)(64bit)
libncurses.so.6()(64bit)
libpcre.so.1()(64bit)
libresolv.so.2()(64bit)
libresolv.so.2(GLIBC_2.2.5)(64bit)
librt.so.1()(64bit)
libssl.so.1.1()(64bit)
libssl.so.1.1(OPENSSL_1_1_0)(64bit)
libstdc++.so.6()(64bit)
libtinfo.so.6()(64bit)
libxml2.so.2()(64bit)
libxml2.so.2(LIBXML2_2.4.30)(64bit)
libxml2.so.2(LIBXML2_2.5.2)(64bit)
libxml2.so.2(LIBXML2_2.6.0)(64bit)
libxml2.so.2(LIBXML2_2.6.11)(64bit)
libz.so.1()(64bit)
php56-php-common(x86-64) = 5.6.40-11.fc28.remi
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsXz) <= 5.2-1
rtld(GNU_HASH)

Content of RPM :
/opt/remi/php56/root/usr/bin/phpdbg
/opt/remi/php56/root/usr/share/doc/php56-php-dbg
/opt/remi/php56/root/usr/share/doc/php56-php-dbg/CREDITS
/opt/remi/php56/root/usr/share/doc/php56-php-dbg/README.md
/opt/remi/php56/root/usr/share/man/man1/phpdbg.1.gz
/usr/bin/php56-phpdbg