Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.php > #14632

Re: Regex to Match two letters

Show all headers | View raw

Lew Pitcher wrote:

> This returns 1 for me on PHP 5.4.32 with PCRE library vers 8.12 2011-01-15
> 
> <?php
>   echo 'preg_match() returned';
>   switch($a = preg_match('/^[a-zA-Z]{2}$/','TZ'))
>   {
>     case 0: echo '  zero';
>     break;
> 
>     case 1: echo '  one';
>     break;
> 
>     case false: echo '  false';
>     break;
> 
>     default: echo $a ;
>     break;
>   }
> ?>

Note, however, that switch/case does loose comparison.  E.g.:

  switch (false) {
    case 0: echo 'zero'; break;
    default: echo 'non-zero'; break;
  }

prints

  zero

-- 
Christoph M. Becker

Back to comp.lang.php | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Regex to Match two letters Eric <ekoome@yahoo.com> - 2014-11-25 09:29 -0800
  Re: Regex to Match two letters "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-11-25 19:08 +0100
  Re: Regex to Match two letters Eric <ekoome@yahoo.com> - 2014-11-25 10:53 -0800
    Re: Regex to Match two letters "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-11-25 20:07 +0100
    Re: Regex to Match two letters Luuk <luuk@invalid.lan> - 2014-11-25 20:17 +0100
    Re: Regex to Match two letters Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-11-25 14:17 -0500
      Re: Regex to Match two letters "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-11-25 20:35 +0100
        Re: Regex to Match two letters Eric <ekoome@yahoo.com> - 2014-11-25 12:55 -0800
          Re: Regex to Match two letters Luuk <luuk@invalid.lan> - 2014-11-26 10:12 +0100
            Re: Regex to Match two letters Eric <ekoome@yahoo.com> - 2014-11-26 01:46 -0800
            Re: Regex to Match two letters Arno Welzel <usenet@arnowelzel.de> - 2014-11-30 07:21 +0100
              Re: Regex to Match two letters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-11-30 13:07 +0100
                Re: Regex to Match two letters Arno Welzel <usenet@arnowelzel.de> - 2014-11-30 19:47 +0100
                Re: Regex to Match two letters Luuk <luuk@invalid.lan> - 2014-11-30 20:21 +0100

csiph-web