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Simple command-line tool to rewrite PHP <?php open tags into
long and short forms, adding or removing the closing ?> token,
probing or removal of trailing whitespace and hidden markers
(e.g. UTF-8 BOM, or NUL bytes).

A simple invocation that rewrites all *.php scripts in a given
directory (recursively) is:

    phptags --whitespace --close  ./forum/

Also works on a list of files:

    phptags --warn -v  *.php

There are two distinct matching and rewriting modes, the default
regex matching and traversing scripts per PHP tokenizer. Both
work for all tasks theoretically.

Whitespace detection and removal is always done using regular
expressions. For --close and --unclose tasks it is likewise

Rewriting short and long tags should preferrably done with the
--tokenizer mode, because the regex rewrite is not context-aware
(can affect open/close tags in strings or comments). Albeit that
might be desireable in edge cases, and regex usage also retains
spacing after short tags more prudently.

Lastly this tool is Public Domain, compatible to all open
source and Free software licenses. Thus redistributable with
applications, scripts and libraries. BUT COMES WITH NO WARRANTY.

       phptags - Converter for PHP scripts open/close tags

       phptags [ --options,...  ] [ files, path ]

       phptags  is a  simple tool to alternate <?php/?> tags in
       *.php scripts. It recursively reads through  directories
       or  a given list of scripts and cleans up <?php open and
       ?> close token.

       It combines various operation tasks:

         * Remove leading and trailing whitespace.
         * Convert <? short open tokens into <?php long tags.
         * Or vice versa, long into short tags (for templates).
         * Remove or add ?> close tokens.

       *.php  Glob patterns can be used to specify  a  list  of
              files  to  process.   (The shell usually does the
              pattern matching, but unprocessed  *.*   patterns
              are also accepted.)

              Given  directories  are recursively traversed and
              searched for *.php files; php4,  php5  and  phtml
              extensions also accepted.

       Both can be combined.

       Short  options  cannot  be  concatenated.  They  must be
       listed individually.

       Whitespace modification

       -w, --white, --whitespace
              Removes leading or trailing whitespace.

       -W, --warn
              Just prints warnings when it detects  any  white‐
              space (or leading UTF-8 BOM).

       Adding or removing closing tags

       -c, --close
              Appends  closing  ?>  token when absent at end of

       -u, --unclosed
              Removes trailing ?> close tag if  present.  (Also
              gets  removed  if there should be trailing white‐

       Rewriting short or long tags

       -l, --long
              Converts short <? tags into long <?php versions.

       -s, --short
              Converts unneccessary long <?php tags into  short
              <? or <?= versions. It is not an overly sophisti‐
              cated match method, but should only convert  one-
              liners  into short tags. Occurences of <?php echo
              and <? echo or print become <?=.

       -a, --all, --shortall
              Converts all long <?php tags into short  <?  ver‐
              sions. This is intended for template scripts. You
              will need the --shortall  option  in  --tokenizer
              mode  most of the time, because it cannot differ‐
              entiate between one-liners and code blocks.

       Behaviour flags

              Does not rewrite <?= into  long  tags  in  --long
              mode,  as  those are always enabled for newer PHP
              version 5.4 and later. (Not default, because  5.4
              still isn't widespread.)

       --rx, --regex
              Prefer  regex for rewriting short/long tags. This
              is the default.  Can be ambiguous due to presence
              of tags within PHP string context or comments.

       -t, --token, --tokenizer
              Use  tokenizer  for  rewriting  short/long  tags.
              (More  reliable,  but  may  not  work  when   the
              short_open_tag  php.ini  setting hampers the tok‐
              enizer behaviour. It's also less  judicious  with
              linebreaks  after  opening  tags  than  the regex
              mode, and doesn't honor <?php print  variants  as
              echo equivalent for <?= short conversion.)

       Miscellaneous options

       -h, --help
              Prints help text.

       -V, --version
              Prints phptags version.

       -v, --verbose
              More output.

       -D, --debug
              Debugging messages.

       -q, --quiet
              Does  not  print additional match infos in white‐
              space --warn mode, but just detected files.

       --new, --suffix
              Does not overwrite processed *.php  scripts,  but
              saves changes into *.php.new filenames.

       -b, --backup
              Renames  old  files  to filename.php~ prior over‐
              writing.  This won't save multiple old  versions.
              Just the last gets copied.

       -d, --dry
              Dry run. Does not save modified files back.

       -c, --color
              Colorizes  the  --warn output on Windows. This is
              enabled on BSD/Linux per  default;  the  -c  flag
              instead disables it there.

       phptags  --close  *.php
              Adds  closing  tag  to any missing *.php files in
              current directory.

       phptags  --warn  scripts/
              Traverses given directory and warns  of  trailing
              or leading whitespace.

       phptags  -w -s -c  index*.php  ./templates
              Fixes  whitespace,  converts into short tags, and
              adds closing tag. Works on some index  files  and
              all php scripts in given templates directory.

       /home/$USER/.config/php/phptags.php   An   ordinary  php
       script, that could contain operation parameter defaults.

                 return array(
                     'token' => 1, 'verbose' => 1 , 'white'  =>

       Internal  flag names mostly match the long CLI parameter

       XDG_CONFIG_HOME (on BSD/Linux), APPDATA (on Windows)
              Configuration store directory instead of  default

              Override to temporarily disable the configuration
              For example PHPTAGS_CONFIG=. phptags -v will  run
              without reading the presets.

       ASP  style <% tags and PHPs super long <script> tags are
       never rewritten.  (The regex mode doesn't look for them,
       and the tokenizer should leave them alone.)

       Single  newlines  after the closing ?> php token are not
       an actual problem for PHP. The parser/tokenizer  eats  a
       single  <NL> or <CR> or <CRLF> up. It's only when people
       manage to append multiple of them, or intersparsed  with
       spaces and tabs, that it can accrue as premature output.

       Matching for <?php tags is case-sensitive. That's incor‐
       rect. PHP tags are case-insensitive.  (Like  most  other
       identifiers  in  PHP, unless you use e.g.  an autoloader
       with systemic misdesigns.)

       As mentioned before, the --regex mode  is  not  context-
       aware  (for  --long  and  --short modes), thus can erro‐
       neously match and rewrite <? tags in PHP string  context
       or comments:

              print 'Here <?php and ?> will get mangled.';
              print 'Here <? and ?> will get mangled.';

       Might  be  wanted in rare cases. But use the --tokenizer
       mode otherwise for maximum resiliency.

       php(1) recode(1) fromdos(1)