[Config] fixed an edge case

fabpot · fabpot · commit e587fa8a858b · 2013-08-13T15:40:07.000+02:00
diff --git a/src/Symfony/Component/Config/Tests/Util/XmlUtilsTest.php b/src/Symfony/Component/Config/Tests/Util/XmlUtilsTest.php
@@ -104,6 +104,7 @@ public function testPhpize($expected, $value)
     public function getDataForPhpize()
     {
         return array(
+            array('', ''),
             array(null, 'null'),
             array(true, 'true'),
             array(false, 'false'),
diff --git a/src/Symfony/Component/Config/Util/XmlUtils.php b/src/Symfony/Component/Config/Util/XmlUtils.php
@@ -187,7 +187,7 @@ public static function phpize($value)
                 $cast = intval($value);
 
                 return '0' == $value[0] ? octdec($value) : (((string) $raw == (string) $cast) ? $cast : $raw);
-            case '-' === $value[0] && ctype_digit(substr($value, 1)):
+            case isset($value[1]) && '-' === $value[0] && ctype_digit(substr($value, 1)):
                 $raw = $value;
                 $cast = intval($value);
 

Original file line number	Diff line number	Diff line change
`@@ -104,6 +104,7 @@ public function testPhpize($expected, $value)`
`104`	`104`	`public function getDataForPhpize()`
`105`	`105`	`{`
`106`	`106`	`return array(`
	`107`	`+ array('', ''),`
`107`	`108`	`array(null, 'null'),`
`108`	`109`	`array(true, 'true'),`
`109`	`110`	`array(false, 'false'),`