Bug #77112 [Opn]: tested on PHP <= 7.2.4

Edit report at https://bugs.php.net/bug.php?id=77112&edit=1

 ID:                 77112
 User updated by:    php at pawlowicz dot it
 Reported by:        php at pawlowicz dot it
-Summary:            tested on PHP >= 7.2.4
+Summary:            tested on PHP <= 7.2.4
 Status:             Open
 Type:               Bug
 Package:            PHP Language Specification
 Operating System:   all
 PHP Version:        7.2.11
 Block user comment: N
 Private report:     N

 New Comment:

php lower equal 7.2.4


Previous Comments:
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[2018-11-06 07:28:48] php at pawlowicz dot it

Description:
------------
Substr returns "" on string_length + 1 instead of "false"

Test script:
---------------
<?php

var_dump(substr("test", 3));  // "t" in PHP 5,  "t" in PHP 7.*
var_dump(substr("test1", 4));  // "1" in PHP 5,  "1" in PHP 7.*

// BUG START!!
var_dump(substr("test", 4));  // false in PHP 5,  "" in PHP 7.*
var_dump(substr("test1", 5));  // false in PHP 5,  "" in PHP 7.*
// BUG END

var_dump(substr("test", 5));  // false in PHP 5,  false in PHP 7.* 
var_dump(substr("test1", 6));  // false in PHP 5,  false in PHP 7.*


Expected result:
----------------
var_dump(substr("test", 4));  // false
var_dump(substr("test1", 5));  // false

Actual result:
--------------
var_dump(substr("test", 4));  // "" in PHP 7.*
var_dump(substr("test1", 5));  // "" in PHP 7.*


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Edit this bug report at https://bugs.php.net/bug.php?id=77112&edit=1