fix warnings parsing phpcode #22

Author: oscarotero

Gettext/Extractors/PhpCode.php

@@ -72,23 +72,28 @@ public static function parse($file, Entries $entries)
 
             $line = array_shift($args);
 
-            if (!isset($args[0])) {
-                continue;
-            }
-
             switch (self::$functions[$function]) {
                 case '__':
+                    if (!isset($args[0])) {
+                        continue 2;
+                    }
                     $original = $args[0];
                     $translation = $entries->find('', $original) ?: $entries->insert('', $original);
                     break;
 
                 case 'n__':
+                    if (!isset($args[1])) {
+                        continue 2;
+                    }
                     $original = $args[0];
                     $plural = $args[1];
                     $translation = $entries->find('', $original, $plural) ?: $entries->insert('', $original, $plural);
                     break;
 
                 case 'p__':
+                    if (!isset($args[1])) {
+                        continue 2;
+                    }
                     $context = $args[0];
                     $original = $args[1];
                     $translation = $entries->find($context, $original) ?: $entries->insert($context, $original);

tests/files/phpCode-example.php

@@ -4,6 +4,7 @@
 
 <div>
     <p><?php __($var); ?></p>
+    <p><?php p__('context', $var); ?></p>
     <p><?php __('text 2'); ?></p>
     <p><?php __('text 3 (with parenthesis)'); ?></p>
     <p><?php __('text 4 "with double quotes"'); ?></p>