diff options
| author | xue <> | 2006-06-19 18:38:29 +0000 | 
|---|---|---|
| committer | xue <> | 2006-06-19 18:38:29 +0000 | 
| commit | 588727c7e2b8954ec3dbde293cf4c4d68b119f9b (patch) | |
| tree | fdcc16181a20335547953ccf1550e0006c11bf28 /buildscripts/PhpDocumentor/phpDocumentor/Smarty-2.6.0/FAQ | |
| parent | 127f78a4db3cc0fbbbb92f5b1abcfdce4a9af93b (diff) | |
Merge from 3.0 branch till 1185.
Diffstat (limited to 'buildscripts/PhpDocumentor/phpDocumentor/Smarty-2.6.0/FAQ')
| -rw-r--r-- | buildscripts/PhpDocumentor/phpDocumentor/Smarty-2.6.0/FAQ | 284 | 
1 files changed, 284 insertions, 0 deletions
diff --git a/buildscripts/PhpDocumentor/phpDocumentor/Smarty-2.6.0/FAQ b/buildscripts/PhpDocumentor/phpDocumentor/Smarty-2.6.0/FAQ new file mode 100644 index 00000000..b82d39cf --- /dev/null +++ b/buildscripts/PhpDocumentor/phpDocumentor/Smarty-2.6.0/FAQ @@ -0,0 +1,284 @@ +QUESTION INDEX
 +--------------
 +
 +GENERAL
 +
 +Q: What is Smarty?
 +Q: What's the difference between Smarty and other template engines?
 +Q: What do you mean "Compiled PHP Scripts" ?
 +Q: Why can't I just use PHPA (http://php-accelerator.co.uk) or Zend Cache?
 +Q: Why does smarty have a built in cache? Wouldn't it be better to handle this
 +   in a separate class?
 +Q: Is Smarty faster than <insert other PHP template engine>?
 +Q: How can I be sure to get the best performance from Smarty?
 +Q: Do you have a mailing list?
 +Q: Can you change the mailing list so reply-to sends to the list and not the
 +   user?
 +
 +TROUBLESHOOTING
 +
 +Q: Smarty doesn't work.
 +Q: I get the following error when running Smarty:
 +   Warning:  Smarty error: problem creating directory "templates_c/239/239105369"
 +   in /path/to/Smarty.class.php on line 542
 +Q: I get the following error when running Smarty:
 +   Warning: Wrong parameter count for preg_replace() in
 +   Smarty.class.php on line 371
 +Q: I get this error when passing variables to {include}:
 +   Fatal error: Call to undefined function: get_defined_vars() in
 +   /path/to/Smarty/templates_c/index.tpl.php on line 8
 +Q: I get PHP errors in my {if} tag logic.
 +Q: I'm changing my php code and/or templates, and my results are not getting
 +   updated.
 +Q: I'm running Windows 2000 and I get blank content. My compiled PHP files are
 +   also zero length.
 +Q: The template goes into an infinite loop when I include included templates
 +   that pass local variables
 +Q: Javascript is causing Smarty errors in my templates.
 +Q: I get "SAFE MODE Restriction in effect. ..."-errors when running smarty.
 +
 +MISC
 +
 +Q: Can I use Macromedia's Dreamweaver to edit my templates?
 +Q: Dreamweaver is urlencoding the template delimiters when they are in a SRC or
 +   HREF link. How do I get around this?
 +
 +HOWTO
 +
 +Q: How do I generate different cache files per template based on arguments
 +   passed to the page?
 +Q: How do I pass a template variable as a parameter? {function param={$varname}}
 +   does not work.
 +Q: How do I include cached template(s) within a non-cached template?
 +
 +
 +GENERAL
 +-------
 +
 +Q: What is Smarty?
 +A: Smarty is a template engine for PHP... but be aware this isn't just another
 +   PHP template engine. It's much more than that.
 +
 +Q: What's the difference between Smarty and other template engines?
 +A: Most other template engines for PHP provide basic variable substitution and
 +   dynamic block functionality. Smarty takes a step further to be a "smart"
 +   template engine, adding features such as configuration files, template
 +   functions, variable modifiers (see the docs!) and making all of this
 +   functionality as easy as possible to use for both programmers and template
 +   designers. Smarty also compiles the templates into PHP scripts, eliminating
 +   the need to parse the templates on every invocation, making Smarty extremely
 +   scalable and manageable for large application needs.
 +
 +Q: What do you mean "Compiled PHP Scripts" ?
 +A: Smarty reads the template files and creates PHP scripts from them. Once
 +   these PHP scripts are created, Smarty executes these, never having to parse
 +   the template files again. If you change a template file, Smarty will
 +   recreate the PHP script for it. All this is done automatically by Smarty.
 +   Template designers never need to mess with the generated PHP scripts or even
 +   know of their existance. (NOTE: you can turn off this compile checking step
 +   in Smarty for increased performance.)
 +
 +Q: Why can't I just use PHPA (http://php-accelerator.co.uk) or Zend Cache?
 +A: You certainly can, and we highly recommend it! What PHPA does is caches
 +   compiled bytecode of your PHP scripts in shared memory or in a file. This
 +   speeds up server response and saves the compilation step. Smarty creates PHP
 +   scripts, which PHPA will cache nicely. Now, Smarty's built-in cache is
 +   something completely different. It caches the _output_ of the template
 +   contents. For example, if you have a template that requires several database
 +   queries, Smarty can cache this output, saving the need to call the database
 +   every time. Smarty and PHPA (or Zend Cache) complement each other nicely. If
 +   performance is of the utmost importance, we would recommend using one of
 +   these with any PHP application, using Smarty or not. As you can see in the
 +   benchmarks, Smartys performance _really_ excels in combination with a PHP
 +   accelerator.
 +
 +Q: Why does Smarty have a built in cache? Wouldn't it be better to handle this
 +   in a separate class?
 +A: Smarty's caching functionality is tightly integrated with the template
 +   engine, making it quite a bit more flexible than a simple caching wrapper.
 +   For instance, you can cache select portions of a template page. Let's say
 +   you have a polling box on your site. With Smarty, you can leave the poll
 +   dynamic and cache the rest of the page. You can also pass templates
 +   multiple cache ids, meaning that a template can have several caches
 +   depending on URL, cookies, etc.
 +
 +Q: Is Smarty faster than <insert other PHP template engine>?
 +A: See the benchmark page for some performance comparisons. Smarty's approach
 +   to templates is a bit different from some languages: it compiles templates
 +   into PHP scripts instead of parsing them on each invocation. This usually
 +   results in great performance gains, especially with complex templates.
 +   Coupled with the built-in caching of Smarty templates, the performance is
 +   outstanding.
 +
 +Q: How can I be sure to get the best performance from Smarty?
 +A: Be sure you set $compile_check=false once your templates are initially
 +   compiled. This will skip the unneeded step of testing if the template has
 +   changed since it was last compiled. If you have complex pages that don't
 +   change too often, turn on the caching engine and adjust your application so
 +   it doesn't do unnecessary work (like db calls) if a cached page is
 +   available. See the documentation for examples.
 +   
 +Q: Do you have a mailing list?
 +A:  We have a few mailing lists. "general" for you to share your ideas or ask
 +	questions, "dev" for those interested in the development efforts of Smarty,
 +	and "cvs" for those that would like to track the updates made in the cvs
 +	repository.
 +
 +    send a blank e-mail message to:
 +      smarty-general-subscribe@lists.php.net (subscribe to the general list)
 +      smarty-general-unsubscribe@lists.php.net (unsubscribe from the general list)
 +      smarty-general-digest-subscribe@lists.php.net (subscribe to digest)
 +      smarty-general-digest-unsubscribe@lists.php.net (unsubscribe from digest)
 +      smarty-dev-subscribe@lists.php.net (subscribe to the dev list)
 +      smarty-dev-unsubscribe@lists.php.net (unsubscribe from the dev list)
 +      smarty-cvs-subscribe@lists.php.net (subscribe to the cvs list)
 +      smarty-cvs-unsubscribe@lists.php.net (unsubscribe from the cvs list)
 +    You can also browse the mailing list archives at
 +    http://marc.theaimsgroup.com/?l=smarty&r=1&w=2
 +
 +
 +
 +Q: Can you change the mailing list so Reply-To sends to the list and not the
 +   user?
 +A: Yes we could, but no we won't. Use "Reply-All" in your e-mail client to send
 +   to the list. http://www.unicom.com/pw/reply-to-harmful.html
 +
 +TROUBLESHOOTING
 +---------------
 +
 +Q: Smarty doesn't work.
 +A: You must be using PHP 4.0.6 or later if you use any version of Smarty
 +   past 2.0.1. Read the BUGS file for more info.
 +
 +Q: I get the following error when running Smarty:
 +   Warning:  Smarty error: problem creating directory "templates_c/239/239105369"
 +   in /path/to/Smarty.class.php on line 542
 +A: Your web server user does not have permission to write to the templates_c
 +   directory, or is unable to create the templates_c directory. Be sure the
 +   templates_c directory exists in the location defined in Smarty.class.php,
 +   and the web server user can write to it. If you do not know the web server
 +   user, chmod 777 the templates_c directory, reload the page, then check the
 +   file ownership of the files created in templates_c. Or, you can check the
 +   httpd.conf (usually in /usr/local/apache/conf) file for this setting:
 +   User nobody
 +   Group nobody
 +
 +Q: I get the following error when running Smarty: Warning: Wrong parameter
 +   count for preg_replace() in Smarty.class.php on line 371
 +A: preg_replace had a parameter added in PHP 4.0.2 that Smarty
 +   requires. Upgrade to at least 4.0.6 to fix all known PHP issues with
 +   Smarty.
 +
 +Q: I get this error when passing variables to {include}:
 +   Fatal error: Call to undefined function: get_defined_vars() in
 +   /path/to/Smarty/templates_c/index.tpl.php on line 8
 +A: get_defined_vars() was added to PHP 4.0.4. If you plan on passing
 +   variables to included templates, you will need PHP 4.0.6 or later.
 +
 +Q: I get PHP errors in my {if} tag logic.
 +A: All conditional qualifiers must be separated by spaces. This syntax will not
 +   work: {if $name=="Wilma"} You must instead do this: {if $name == "Wilma"}.
 +   The reason for this is syntax ambiguity. Both "==" and "eq" are equivalent
 +   in the template parser, so something like {if $nameeq"Wilma"} wouldn't be
 +   parsable by the tokenizer.
 +
 +Q: I'm changing my php code and/or templates, and my results are not getting
 +   updated.
 +A: This may be the result of your compile or cache settings. If you are
 +   changing your php code, your templates will not necessarily get recompiled
 +   to reflect the changes. Use $force_compile during develpment to avoid these
 +   situations. Also turn off caching during development when you aren't
 +   specifically testing it. You can also remove everything from your
 +   compile_dir and cache_dir and reload the page to be sure everything gets
 +   regenerated.
 +
 +Q: I'm running Windows 2000 and I get blank content. My compiled PHP files are
 +   also zero length.
 +A: There seems to be a problem with some W2k machines and exclusive file
 +   locking. Comment out the flock() call in _write_file to get around this,
 +   although be aware this could possibly cause a problem with simultaneous
 +   writes to a file, especially with caching turned on. NOTE: As of Smarty
 +   1.4.0, a workaround was put in place that should solve this.
 +
 +Q: The template goes into an infinite loop when I include included templates
 +   that pass local variables
 +A: This was fixed in 1.3.2 (new global attribute)
 +
 +Q: Javascript is causing Smarty errors in my templates.
 +A: Surround your javascript with {literal}{/literal} tags. See the docs.
 +
 +Q: I get "SAFE MODE Restriction in effect. ..."-errors when running smarty.
 +A: Use $smarty->use_sub_dirs = false when running php in safe mode.
 +
 +MISC
 +----
 +
 +Q: Can I use Macromedia's Dreamweaver to edit my templates?
 +A: Certainly. You might want to change your tag delimiters from {} to something
 +   that resembles valid HTML, like <!--{ }--> or <{ }> or something similar.
 +   This way the editor won't view the template tags as errors.
 +
 +Q: Dreamweaver is urlencoding the template delimiters when they are in a SRC or
 +   HREF link. How do I get around this?
 +A: In Edit - Properties - Rewrite HTML you can specify if Dreamweaver should
 +   change special letters to %-equivalent or not. The default is on which
 +   produces this error.
 +
 +HOWTO
 +-----
 +   
 +Q: How do I generate different cache files per template based on arguments
 +   passed to the page?
 +A: Use your $REQUEST_URI as the cache_id when fetching the page:
 +
 +   global $REQUEST_URI; // if not already present
 +   $smarty->display('index.tpl',$REQUEST_URI);
 +
 +   This will create a separate cache file for each unique URL when you call
 +   index.tpl. See the documentation for display() and fetch()
 +
 +Q: How do I pass a template variable as a parameter? {function param={$varname}}
 +   does not work.
 +A: {function param=$varname} (You cannot nest template delimiters.)
 +
 +Q: How do I include cached template(s) within a non-cached template?
 +A: One way to do it:
 +
 +   $smarty->caching = true;
 +   $tpl1 = $smarty->fetch("internal1.tpl");
 +   $tpl2 = $smarty->fetch("internal2.tpl");
 +   $tpl3 = $smarty->fetch("internal3.tpl");
 +
 +   $smarty->assign("tpl1_contents",$tpl1);
 +   $smarty->assign("tpl2_contents",$tpl2);
 +   $smarty->assign("tpl3_contents",$tpl3);
 +
 +   $smarty->caching = false;
 +   $smarty->display('index.tpl');
 +
 +   index.tpl
 +   ---------
 +
 +   <table>
 +           <tr>
 +                   <td>{$tpl1_contents}</td>
 +                   <td>{$tpl2_contents}</td>
 +                   <td>{$tpl3_contents}</td>
 +           </tr>
 +   </table>
 +
 +
 +
 +
 +   Another approach:
 +
 +   You could write a custom insert function to fetch your internal
 +   templates:
 +
 +   <table>
 +           <tr>
 +                   <td>{insert name=fetch_tpl tpl="internal1.tpl"}</td>
 +                   <td>{insert name=fetch_tpl tpl="internal2.tpl"}</td>
 +                   <td>{insert name=fetch_tpl tpl="internal3.tpl"}</td>
 +           </tr>
 +   </table>
  | 
