Comments on: Python __name__ == __main__ in PHP http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/ Thu, 28 Aug 2008 13:59:03 +0000 http://wordpress.org/?v=2.5 By: SitePoint Blogs » PHP Server API Differences http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/#comment-10633 SitePoint Blogs » PHP Server API Differences Wed, 09 Nov 2005 10:53:53 +0000 #comment-10633 [...] The link doesn’t quite raise the full story though. As I remember, with PHP as a CGI under Apache, $_SERVER[’SCRIPT_FILENAME’] is the path to the CGI executable, not the script it is executing—that relates to a request for a PHP constant called __MAIN__ to identify the script where execution began. [...] […] The link doesn’t quite raise the full story though. As I remember, with PHP as a CGI under Apache, $_SERVER[’SCRIPT_FILENAME’] is the path to the CGI executable, not the script it is executing—that relates to a request for a PHP constant called __MAIN__ to identify the script where execution began. […]

]]> By: cagrET http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/#comment-245 cagrET Wed, 31 Dec 1969 19:00:00 +0000 #comment-245 <p>There is an another solution:</p> <code lang="php"> if (basename(__FILE__) == basename($_SERVER['PHP_SELF'])) { // ... }</code><p><br /> It only requires that the included file has an unique name.</p> There is an another solution:

if (basename(__FILE__) == basename($_SERVER['PHP_SELF'])) { // ... }

It only requires that the included file has an unique name.

]]> By: cagrET http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/#comment-246 cagrET Wed, 31 Dec 1969 19:00:00 +0000 #comment-246 <p>And another one:</p> <code lang="php"> if (count(debug_backtrace()) == 0) { echo 'SELF'; }</code><p><br /> But I didn't do any perfomance tests with debug_backtrace() so don't know if it is not to slow.</p> And another one:

if (count(debug_backtrace()) == 0) { echo 'SELF'; }

But I didn’t do any perfomance tests with debug_backtrace() so don’t know if it is not to slow.

]]> By: HarryF http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/#comment-247 HarryF Wed, 31 Dec 1969 19:00:00 +0000 #comment-247 <code lang="php"> if (count(debug_backtrace()) == 0) {</code><p>Nice one! Think that wins the lateral thought of the day ;)</p> <p>Running it through <a href="http://www.xdebug.org">XDebug</a>, compared to the alterative;</p> <code lang="php"> if ( __FILE__ == array_shift(get_included_files()) ) {</code><p>The results looks like;</p> <code> Total Time Avg. Time #Calls Function Name 0.1426506042 0.0000014265 100000 count 0.1460983753 0.0000014610 100000 debug_backtrace</code><p>vs.</p> <code> Total Time Avg. Time #Calls Function Name 0.1719875336 0.0000017199 100000 array_shift 0.1729249954 0.0000017292 100000 get_included_files</code><p>Looks like debug_backtrace is the winner.</p> if (count(debug_backtrace()) == 0) {

Nice one! Think that wins the lateral thought of the day ;)

Running it through XDebug, compared to the alterative;

if ( __FILE__ == array_shift(get_included_files()) ) {

The results looks like;

Total Time Avg. Time #Calls Function Name 0.1426506042 0.0000014265 100000 count 0.1460983753 0.0000014610 100000 debug_backtrace

vs.

Total Time Avg. Time #Calls Function Name 0.1719875336 0.0000017199 100000 array_shift 0.1729249954 0.0000017292 100000 get_included_files

Looks like debug_backtrace is the winner.

]]> By: gerzson http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/#comment-248 gerzson Wed, 31 Dec 1969 19:00:00 +0000 #comment-248 <p>I think is_defined() should be a typo only, but I report it.<br /> The name of the desired function is defined().</p> I think is_defined() should be a typo only, but I report it.
The name of the desired function is defined().

]]> By: Andrew-J2000 http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/#comment-249 Andrew-J2000 Wed, 31 Dec 1969 19:00:00 +0000 #comment-249 <p>heh, Harry, we think alike.</p> <p>I emailed, <a href="mailto:dmitry@zend.com">dmitry</a> (<i>The developer of the Perl extension</i>) earlier, about <i>implementing Python</i> and I just found your post :p. Also a comment on zend refered to this as <i>'bloatware'</i>, which didn't quite make sense considering its not bundled with <i>PHP</i>. <a href="http://www.zend.com/zend/comments/show_comment.php?article=php5-perl&id=4887&pid=4751&days=10000&f_id=php5-perl&mode=&kind=php5">http://www.zend.com/zend/comments/show_comment.php?article=php5-perl&id=4887&pid=4751&days=10000&f_id=php5-perl&mode=&kind=php5</a></p> heh, Harry, we think alike.

I emailed, dmitry (The developer of the Perl extension) earlier, about implementing Python and I just found your post :p. Also a comment on zend refered to this as ‘bloatware’, which didn’t quite make sense considering its not bundled with PHP. http://www.zend.com/zend/comments/show_comment.php?article=php5-perl&id=4887&pid=4751&days=10000&f_id=php5-perl&mode=&kind=php5

]]> By: Andrew-J2000 http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/#comment-250 Andrew-J2000 Wed, 31 Dec 1969 19:00:00 +0000 #comment-250 <p>What are your comments about the perl/python extension being <i>'bloatware'</i>?</p> What are your comments about the perl/python extension being ‘bloatware’?

]]> By: HarryF http://www.sitepoint.com/blogs/2004/04/27/python-__name__-__main__-in-php/#comment-251 HarryF Wed, 31 Dec 1969 19:00:00 +0000 #comment-251 <p><blockquote><p><br /> What are your comments about the perl/python extension being 'bloatware'?<br /> </p></blockquote></p> <p>Well the comment "Completly useless... just bloatware" doesn't really give anything to argue against, accept to say "No it isn't". Seems more like random spam.</p> <p>To date I've never played with the <a href="http://pecl.php.net/python">Python</a> or <a href="http://pecl.php.net/perl">Perl</a> extensions.</p> <p>Where the subject of "bloat" might need examining is when it comes to the performance overhead of loading / executing external Perl/Python code.</p> <p>But there is most definately a value in being able to execute Perl / Python code in PHP. Just head to <a href="http://www.cpan.org">CPAN</a> and you have your answer. Python also has some excellent libraries.</p> <p>Also that this has got Dmitry's name on it suggests to me it's a serious project, Dmitry being the original author of <a href="http://turck-mmcache.sourceforge.net/">Turck MMCache</a> and now <a href="http://www.php.net/soap">the SOAP extension</a>.</p>

What are your comments about the perl/python extension being ‘bloatware’?

Well the comment “Completly useless… just bloatware” doesn’t really give anything to argue against, accept to say “No it isn’t”. Seems more like random spam.

To date I’ve never played with the Python or Perl extensions.

Where the subject of “bloat” might need examining is when it comes to the performance overhead of loading / executing external Perl/Python code.

But there is most definately a value in being able to execute Perl / Python code in PHP. Just head to CPAN and you have your answer. Python also has some excellent libraries.

Also that this has got Dmitry’s name on it suggests to me it’s a serious project, Dmitry being the original author of Turck MMCache and now the SOAP extension.

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