Fix php 7.1 warning (#12)

nicoschoenmaker · Hidde Boomsma · commit 644156c56b0b · 2017-05-11T11:09:35.000+02:00
`Warning: A non-numeric value encountered` http://php.net/manual/en/migration71.other-changes.php
diff --git a/lib/yaml/sfYamlInline.class.php b/lib/yaml/sfYamlInline.class.php
@@ -103,7 +103,7 @@ static protected function dumpArray($value)
     if (
       (1 == count($keys) && '0' == $keys[0])
       ||
-      (count($keys) > 1 && array_reduce($keys, create_function('$v,$w', 'return (integer) $v + $w;'), 0) == count($keys) * (count($keys) - 1) / 2))
+      (count($keys) > 1 && array_reduce($keys, create_function('$v,$w', 'return ((int) $v) + ((int) $w);'), 0) == count($keys) * (count($keys) - 1) / 2))
     {
       $output = array();
       foreach ($value as $val)

Original file line number	Diff line number	Diff line change
`@@ -103,7 +103,7 @@ static protected function dumpArray($value)`
`103`	`103`	`if (`
`104`	`104`	`(1 == count($keys) && '0' == $keys[0])`
`105`	`105`	`\|\|`
`106`		`- (count($keys) > 1 && array_reduce($keys, create_function('$v,$w', 'return (integer) $v + $w;'), 0) == count($keys) * (count($keys) - 1) / 2))`
	`106`	`+ (count($keys) > 1 && array_reduce($keys, create_function('$v,$w', 'return ((int) $v) + ((int) $w);'), 0) == count($keys) * (count($keys) - 1) / 2))`
`107`	`107`	`{`
`108`	`108`	`$output = array();`
`109`	`109`	`foreach ($value as $val)`