Edit report at https://bugs.php.net/bug.php?id=49790&edit=1

 ID:                 49790
 Comment by:         andre at koethur dot de
 Reported by:        pg dot millon at gmail dot com
 Summary:            mb_substr_count and substr_count do not have the
                     same definition
 Status:             Open
 Type:               Feature/Change Request
 Package:            mbstring related
 Operating System:   Ubuntu
 PHP Version:        5.2.11
 Block user comment: N
 Private report:     N

 New Comment:

Without the offset parameter, this function is quite useless, because it will 
behave exact like a binary safe substr_count() with $offset=0. In other words; 
There is only a need for a multi byte aware substr_count when $offset > 0 …


Previous Comments:
------------------------------------------------------------------------
[2013-03-19 13:07:47] neggelandia at gmail dot com

The problem goes deeper. substr_count() takes 4 parameters while 
mb_substr_count() only takes three (and the third doens't even have the same 
meaning), which produces errors such as this:

mb_substr_count() expects at most 3 parameters, 4 given

This makes the mbstring.func_overload configuration parameter misbehave.

------------------------------------------------------------------------
[2009-10-06 15:52:02] pg dot millon at gmail dot com

Description:
------------
I'm using the mbstring_funcoverload property defined to 7 which allows the 
overload of every functions. While using the function substr_count with the 3 
parameter (offset) defined. As overloading is activated, calling substr_count 
is equivalent to calling mb_substr_count but the offset parameter does not 
exists for this function

Reproduce code:
---------------
In php.ini: mbstring.func_overload 7

$var = substr_count('/some/path', DIRECTORY_SEPARATOR, 0);

Expected result:
----------------
1

Actual result:
--------------
Warning: mb_substr_count(): Unknown encoding "0" in php shell code on line 1

Call Stack:
    6.0376      46516   1. {main}() php shell code:0
    6.0376      46648   2. mb_substr_count() php shell code:1


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