➜ ~ php7 -vdyld: library not loaded: /usr/local/lib/libpng16.16.dylib referenced from: /usr/bin/php7 reason: image not found[1] 95671 trace trap php7 -v

how to solve this problem？
回复内容： ➜ ~ php7 -vdyld: library not loaded: /usr/local/lib/libpng16.16.dylib referenced from: /usr/bin/php7 reason: image not found[1] 95671 trace trap php7 -v

how to solve this problem？
➜ ~ brew install php56
error: you must `brew link libpng unixodbc' before homebrew/php/php56 can be installed
➜ ~ brew link libpng unixodbc
error: could not symlink share/man/man5/png.5
/usr/local/share/man/man5 is not writable.
➜ man git:(master) ll
total 8
drwxr-xr-x 55 yugo admin 1.8k 10 12 23:06 man1
drwxr-xr-x 103 yugo admin 3.4k 10 13 18:10 man3
drwxr-xr-x 4 root wheel 136b 1 6 2015 man5
drwxr-xr-x 6 root admin 204b 8 24 19:33 man8
drwxr-xr-x 6 root wheel 204b 3 30 2013 mann
-rw-r--r-- 1 root admin 3.9k 10 12 13:59 whatis
➜ man git:(master) sudo chmod 777 man5
➜ man git:(master) brew link libpng unixodbc
linking /usr/local/cellar/libpng/1.6.18... 18 symlinks created
linking /usr/local/cellar/unixodbc/2.3.2_1... 28 symlinks created