added memcache and apc to travis

tests/unit/data/travis/README.md

@@ -4,6 +4,8 @@ These scripts might be used to configure your own system for test runs. But sinc
 
 The scripts are:
 
+ - [`apc-setup.sh`](apc-setup.sh)
+   Installs and configures the [apc pecl extension](http://pecl.php.net/package/apc)
  - [`memcache-setup.sh`](memcache-setup.sh)
    Compiles and installs the [memcache pecl extension](http://pecl.php.net/package/memcache)
  - [`cubrid-setup.sh`](cubrid-setup.sh)

tests/unit/data/travis/apc-setup.sh

@@ -0,0 +1,2 @@
+echo "extension = <extension>.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
+echo "apc.enable_cli = 1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini

tests/unit/data/travis/memcache-setup.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+install_memcache() {
+    if [ "$(expr "$TRAVIS_PHP_VERSION" ">=" "5.5")" -eq 1 ]; then
+        MEMCACHE_VERSION="2.2.7"
+        wget "http://pecl.php.net/get/memcache-$MEMCACHE_VERSION.tgz" &&
+        tar -zxf "memcache-$MEMCACHE_VERSION.tgz" &&
+        sh -c "cd memcache-$MEMCACHE_VERSION && phpize && ./configure --enable-memcache && make && sudo make install"
+    fi
+
+    echo "extension=memcache.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
+
+    return $?
+}
+
+install_memcache > ~/memcache.log || ( echo "=== MEMCACHE BUILD FAILED ==="; cat ~/memcache.log )