Adding IMAP to PHP 7.2 on OSX


Question or issue on macOS:

I’m using PHP 7.2 on OS X El Capitan, installed using Homebrew (of course). Now I’d like to use some IMAP functions from PHP’s IMAP extension, but no matter what I search for, I can’t find a way to add the extension on OSX.

Some things I’ve tried… I have, of course, tried the most commonly recommended approach:

$ brew reinstall php --with-imap

Yet this fails, returning:

Warning: php: this formula has no --with-imap option so it will be ignored!

Another method, which I found mentioned in passing, also fails:

$ brew install php72-imap

Error: No available formula with the name "php72-imap" 
==> Searching for a previously deleted formula (in the last month)...
Warning: homebrew/core is shallow clone. To get complete history run:
  git -C "$(brew --repo homebrew/core)" fetch --unshallow

Error: No previously deleted formula found.
==> Searching for similarly named formulae...
Error: No similarly named formulae found.
==> Searching taps...
==> Searching taps on GitHub...
Error: No formulae found in taps.

I’m not exactly sure which direction to go in with this. I’m sure there’s an easy, probably documented, way of doing this, but I am yet to find it. Perhaps I’m just looking in the wrong places and using the wrong search terms…

How to solve this problem?

Solution no. 1:

Kevin Abel is providing some of the PHP extensions removed from Homebrew/core. You can install the IMAP extension with:

brew tap kabel/php-ext
brew install php-imap

To install a specific version, such as 7.2 use:

brew install [email protected]

Solution no. 2:

Here is how I solved this problem under Mojave:

First, I installed IMAP module for PHP 7.2

brew install kabel/php-ext/[email protected]

Secondly I copied the from installed folder to the ‘extension_dir’ used by php.ini

sudo cp /usr/local/lib/php/20170718/ to /usr/local/lib/php/pecl/20170718

Solution no. 3:

This answer for those who prefer installing imap ext using native commands without adding other taps or smth else.

In short we need to compile extension from sources.
Ok, here is the process.

$ # Download sources from of already installed php version. 
$ cd ~/Downloads
$ wget
$ gunzip php-7.3.5.tar.gz
$ tar xvf php-7.3.5.tar
$ # Go to ext dir 
$ cd php-7.3.5/ext/imap
$ # prepare extension using phpize command, you should 
$ # ensure that you use phpize of proper version from 
$ # already installed php version as checking the API version for example
$ phpize
$ # prepare dependencies
$ # install openssl and imap
$ brew install openssl
$ brew install imap-uw
$ # after all installation check the installed paths of the exts
$ ./configure --with-kerberos --with-imap-ssl=/usr/local/Cellar/openssl/1.0.2r/ --with-imap=/usr/local/Cellar/imap-uw/2007f/
$ make
$ # get extension dir 
$ php -i | grep extension_dir
extension_dir => /usr/local/lib/php/pecl/20180731 => /usr/local/lib/php/pecl/20180731
$ cp modules/ /usr/local/lib/php/pecl/20180731/
$ # add extension to your php.ini
# [imap]
# extension=""

That’s it. Be lucky!

Solution no. 4:

For those who have trouble in Mojave, I have forked the repository and fixed it use:
brew tap vishal-sancheti/php-ext instead

Hope this helps!