added PHP with chapter 1,2

php/LICENSE

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+The MIT License
+
+Copyright (c) 2016 
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

php/README.md

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+# Cracking the Code Interview with PHP
+> Cracking the code interview solutions for PHP developers
+
+Tested solutions for chapters.
+
+## Installation
+
+After you go into the app directory, you should execute following commands.
+OS X & Linux:
+
+```sh
+composer install
+```
+
+For installation, we need to consider these:
+
+ - Firstly, install PHP 7
+ - Secondly you can install PHPUnit globally for testing proposes
+
+Now, follow these steps:
+ - Clone repository
+ - composer install
+
+## Development setup
+
+To run all tests of the app, execute these commands in the app directory.
+
+```sh
+composer install
+phpunit
+```
+
+## Release History
+
+Refer to [CHANGELOG](https://github.com/midorikocak/ctci-php/CHANGELOG.md)
+
+## Meta
+
+Midori Kocak – [@midorikocak](https://twitter.com/midorikocak) – [email protected]
+
+Distributed under the MIT license. See ``LICENSE`` for more information.
+
+[https://github.com/midorikocak/ctci-php](https://github.com/midorikocak/ctci-php/)

php/composer.json

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+{
+    "name": "midorikocak/ctci-php",
+    "description": "php solutions of cracking the code interview using php",
+    "type": "project",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Midori Kocak",
+            "email": "[email protected]"
+        }
+    ],
+    "minimum-stability": "dev",
+    "autoload": {
+        "psr-4": {
+            "MidoriKocak\\": "src/",
+            "CTCILibrary\\":"src/CTCILibrary",
+            "Introduction\\":"src/Introduction",
+            "Chapter01\\Question1_1\\":"src/Chapter01/Question1_1",
+            "Chapter01\\Question1_2\\":"src/Chapter01/Question1_2",
+            "Chapter01\\Question1_3\\":"src/Chapter01/Question1_3",
+            "Chapter01\\Question1_4\\":"src/Chapter01/Question1_4",
+            "Chapter01\\Question1_5\\":"src/Chapter01/Question1_5",
+            "Chapter01\\Question1_6\\":"src/Chapter01/Question1_6",
+            "Chapter01\\Question1_7\\":"src/Chapter01/Question1_7",
+            "Chapter01\\Question1_8\\":"src/Chapter01/Question1_8",
+            "Chapter01\\Question1_9\\":"src/Chapter01/Question1_9",
+            "Chapter02\\Question2_5\\":"src/Chapter02/Question2_5"
+        },
+        "psr-0": {
+            "MidoriKocakTest\\": "tests/"
+        }
+    },
+    "require": {
+        "phpunit/phpunit": "^6.1@dev"
+    }
+}