Install lmdb

## Build PHP7 in brew.md

      
        

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              Build PHP7 in brew.md
            
          
        
      
    
  
    This method is suitable for compiling PHP from the source code not only for LMDB, but also through it you can perform any kind of configuration before installation.
Install lmdb
Unfortunately, it is currently not possible to change the database size and it is fixed at a size of 1MB (this restriction is defined in the library itself). To get around this, you need to patch the library itself before installation. Look here as: https://gist.github.com/saippuakauppias/95b6f7b139b3d117b7dac4aeead9f5b4
Proper way (not worked)
Build php7 from sources

--interactive: Download and patch formula, then open a shell.
This allows the user to run ./configure --help and otherwise
determine how to turn the software package into a Homebrew package.

brew install --build-from-source --interactive php

==> Installing php
==> Downloading https://www.php.net/distributions/php-7.3.11.tar.xz
==> Patching
patching file acinclude.m4
Hunk #5 succeeded at 2504 (offset 85 lines).
==> Entering interactive mode
Type exit to return and finalize the installation
Install to this prefix: /usr/local/Cellar/php/7.3.11
➜  php-7.3.11 #

./configure --with-lmdb=/usr/local/opt/lmdb
# ??? 
# need more args in `configure` or `make install`?
make
make test
exit
Hacker-style way
Update brew & patch formula
brew update
brew edit php
Need find --enable-dba and add below:
--with-lmdb=#{Formula["lmdb"].opt_prefix}

Build from sources
brew install --build-from-source php
Verify
In another terminal tab
php -v
php -i | grep lmdb