Added PHP export

src/MLD/Console/Command/ExportCommand.php

@@ -34,6 +34,7 @@ class ExportCommand extends Command
         'csv' => ['class' => '\MLD\Converter\CsvConverter', 'output_file' => 'countries.csv'],
         'xml' => ['class' => '\MLD\Converter\XmlConverter', 'output_file' => 'countries.xml'],
         'yml' => ['class' => '\MLD\Converter\YamlConverter', 'output_file' => 'countries.yml'],
+        'php' => ['class' => '\MLD\Converter\PHPConverter', 'output_file' => 'countries.php']
     ];
 
     /**

src/MLD/Converter/PHPConverter.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace MLD\Converter;
+
+/**
+ * Class CsvConverter
+ */
+class PHPConverter extends AbstractConverter
+{
+
+    /**
+     * @var string
+     */
+    private $prefix = "<?php\nreturn [";
+
+    /**
+     * @var string
+     */
+    private $suffix = '];';
+
+    /**
+     * @var array
+     */
+    private $bodyChunks = [];
+
+    /**
+     * @return string data converted into CSV
+     */
+    public function convert()
+    {
+        array_walk($this->countries, [$this, 'processCountry']);
+        return $this->prefix . "\n" . implode(",\n",$this->bodyChunks) . "\n" . $this->suffix;
+    }
+
+    private function processCountry(&$array)
+    {
+        $this->bodyChunks[] = 
+            "'".$array['cca2'] ."' => " . var_export($array, true);
+    }
+}