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How can I troubleshoot my Perl CGI script?

... @derobert: actually, __DATA__ is the token used to start the data section, not __END__ (I think that was my confusion). – Ether Sep 9 '10 at 19:17 ...
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Catch all JavaScript errors and send them to server

...tested Sentry on production and it works fine (JS and other languages like PHP) 1- It's open source (You can install it on your own server) 2- You can use the free plan (100 reports / day) Or install it on your server: github.com/getsentry ...
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Styling HTML email for Gmail

... tool from zurb to inline all of your styles: http://zurb.com/ink/inliner.php This comes in extremely handy when using templates like those mentioned above from mailchimp, campaign monitor, etc. as they, as you have found, will not work in some email programs. This tool leaves your style section ...
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What's faster, SELECT DISTINCT or GROUP BY in MySQL?

...y i) a; count 10001 (1 row) Time: 594,481 ms http://www.pgsql.cz/index.php/PostgreSQL_SQL_Tricks_I so be careful ... :) share | improve this answer | follow ...
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Shell Script — Get all files modified after

I'd rather not do this in PHP so I'm hoping a someone decent at shell scripting can help. 9 Answers ...
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How to change the default encoding to UTF-8 for Apache?

... In .htaccess add this line: AddCharset utf-8 .html .css .php .txt .js This is for those that do not have access to their server's conf file. It is just one more thing to try when other attempts failed. As far as performance issues regarding the use of .htaccess I have not seen t...
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How to prevent form from submitting multiple times from client side?

... I agree. Should be form page ---submits to---> form_submission_script.php ---after saving, redirects to---> form_thankyou.html – Simon East Sep 7 '11 at 2:18 add a com...
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Why covariance and contravariance do not support value type

...inter) contiguously in memory; the objects being pointed to are separately allocated. The other (related) issue(*) is that (almost) all Reference types have the same representation for variance purposes and much code does not need to know of the difference between types, so co- and contra-variance...
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Javascript add leading zeroes to date

... You can define a "str_pad" function (as in php): function str_pad(n) { return String("00" + n).slice(-2); } share | improve this answer | ...
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Pretty graphs and charts in Python [closed]

...for Python? I can't speak about this one, but I've used ChartDirector for PHP and it's pretty good. share answered Sep 9 '08 at 19:13 ...