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Re: count chars but not using count_chars

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Matthew Carter wrote:

> Jerry Stuckle <jstucklex@attglobal.net> writes:
>> Or any number of ways.  You could use a regex, as Pointed Head
>> indicated, but that can get pretty complex for a new programmer pretty
>> quickly - and really is overkill for something relatively simple.
>>
>> And BTW - don't worry about Pointed Head's complaints.  He's a
>> well-known troll in this and several other newsgroups.

You wish.
 
> If you have a somewhat recent version of PHP, this will work:
> 
> $str = "Hello World World";
> $spaces = count_chars($str,1)[32];
> 
> echo "You had {$spaces} spaces.";

Very nice.  Because the count_chars() function is available since PHP 4 [1], 
the more compatible variant is simply

  $str = "Hello World World";
  $stats = count_chars($str, 1);
  $spaces = $stats[32] ?: 0;

  echo "You had {$spaces} spaces.";

Caveat: count_chars() and other byte-related approaches suffice for counting 
ASCII space characters.  But they cannot count multi-byte characters, while 
preg_match_all() can if you use the “u” flag in the expression and have a 
string encoded with UTF-8.

[1] <http://php.net/count_chars>

-- 
PointedEars
Zend Certified PHP Engineer
Twitter: @PointedEars2
Please do not cc me. / Bitte keine Kopien per E-Mail. 

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Thread

count chars but not using count_chars albert <alstopspam@stopaspam.com> - 2015-11-14 11:42 +0100
  Re: count chars but not using count_chars Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-14 12:51 +0100
  Re: count chars but not using count_chars Jerry Stuckle <jstucklex@attglobal.net> - 2015-11-14 09:09 -0500
    Re: count chars but not using count_chars Matthew Carter <m@ahungry.com> - 2015-11-14 23:08 -0500
      Re: count chars but not using count_chars Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-11-17 21:35 +0100

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