Fix digits_between with fractions (#40278)

Author: driesvints

src/Illuminate/Validation/Concerns/ValidatesAttributes.php

@@ -486,7 +486,7 @@ public function validateDigitsBetween($attribute, $value, $parameters)
 
         $length = strlen((string) $value);
 
-        return ! preg_match('/[^0-9]/', $value)
+        return ! preg_match('/[^0-9.]/', $value)
                     && $length >= $parameters[0] && $length <= $parameters[1];
     }
 

tests/Validation/ValidationValidatorTest.php

@@ -1767,6 +1767,12 @@ public function testValidateDigits()
 
         $v = new Validator($trans, ['foo' => '+12.3'], ['foo' => 'digits_between:1,6']);
         $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => '1.2'], ['foo' => 'digits_between:1,10']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => '0.9876'], ['foo' => 'digits_between:1,5']);
+        $this->assertTrue($v->fails());
     }
 
     public function testValidateSize()