php 7.3.0

[SMillerDev]

• Have you followed the guidelines for contributing?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with brew install --build-from-source <formula>, where <formula> is the name of the formula you're submitting?
• Does your build pass brew audit --strict <formula> (after doing brew install <formula>)?

---

[BrewTestBot]

• New formulae should not have a bottle do block

[fxcoudert]

php@7.2 failed to build:

==> make install
Installing PHP SAPI module:       apache2handler
Installing PHP CLI binary:        /usr/local/Cellar/php@7.2/7.2.13/bin/
mkdir: /usr/local/Cellar/php@7.2/7.2.13/bin: File exists
Installing shared extensions:     /usr/local/Cellar/php@7.2/7.2.13/lib/php/20170718/
Possible unintended interpolation of @7 in string at (eval 26) line 1.
/usr/local/opt/httpd/lib/httpd/build/instdso.sh SH_LIBTOOL='/usr/local/opt/apr/libexec/build-1/libtool' libs/libphp7.so /usr/local/Cellar/php.2/7.2.13/lib/httpd/modules
Installing PHP CLI man page:      /usr/local/Cellar/php@7.2/7.2.13/share/man/man1/
/usr/local/opt/apr/libexec/build-1/libtool --mode=install install libs/libphp7.so /usr/local/Cellar/php.2/7.2.13/lib/httpd/modules/
Installing PHP FPM binary:        /usr/local/Cellar/php@7.2/7.2.13/sbin/
libtool: install: install libs/libphp7.so /usr/local/Cellar/php.2/7.2.13/lib/httpd/modules
install: /usr/local/Cellar/php.2/7.2.13/lib/httpd/modules: No such file or directory
apxs:Error: Command failed with rc=4653056
.
make: *** [install-sapi] Error 1

The string /usr/local/Cellar/php@7.2 leads to Possible unintended interpolation of @7 in string, which turns it into /usr/local/Cellar/php.2, which of course fails. The php@7.1 formula works around this issue (line 65 of php@7.1.rb).

---

Also:

php@7.2:
  * Versioned formulae should use `keg_only :versioned_formula`

[SMillerDev]

You'd think I'd be able to write a formula by now...