PHP 8.0 > Fix is_numeric behavior with trailing empty char

Numeric strings ending with whitespace ("42 ") will now return true. Previously, false was return instead.

Use same fix has main maintened Yaml lib :
symfony/yaml@4152e36
+ performance improvement
symfony/yaml@2b5f2ae

Author: Tybaze

lib/yaml/sfYamlInline.class.php

@@ -99,7 +99,7 @@ static public function dump($value)
         return 'false';
       case (is_string($value) && ctype_digit($value)):
         return is_string($value) ? "'$value'" : (int) $value;
-      case is_numeric($value):
+      case is_numeric($value) && false === strpbrk($value, "\f\n\r\t\v"):
         return is_infinite($value) ? str_ireplace('INF', '.Inf', (string) $value) : (is_string($value) ? "'$value'" : $value);
       case false !== strpos($value, "\n") || false !== strpos($value, "\r"):
         return sprintf('"%s"', str_replace(array('"', "\n", "\r"), array('\\"', '\n', '\r'), $value));