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How to fix “Headers already sent” error in PHP
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No output before sending headers!
Functions that send/modify HTTP headers must be invoked before any output is made.
summary ⇊
Otherwise the call fails:
Warning: Cannot modify header information - headers already sent (output started at script:l...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
...rewrite it to "/foo/baz". The request will then be handled as if /foo/baz had been requested instead. This can be used for various effects, for example:
RewriteRule (.*) $1.html
This rule matches anything (.*) and captures it ((..)), then rewrites it to append ".html". In other words, if /foo/bar...
JavaScript - Replace all commas in a string [duplicate]
...-test"
If you need to pass a variable as a replacement string, instead of using regex literal you may create RegExp object and pass a string as the first argument of the constructor. The normal string escape rules (preceding special characters with \ when included in a string) will be necessa...
How to get list of all installed packages along with version in composer?
...en working on a project using Symfony 2.1 on my local machine. I have uploaded it to my server but when I try and install the vendor bundles using Composer, I'm getting a lot of dependency errors. Presumably this is something to do with the latest version of Symfony just being released and my com...
Algorithm to compare two images
...er. The author of the copy may do stuff like rotating, making negative, or adding trivial details (as well as changing the dimension of the image).
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Is it possible to open a Windows Explorer window from PowerShell?
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Geert Smelt
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answered Nov 26 '08 at 15:25
EBGreenEBGreen
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Generating Guids in Ruby
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maerics
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answered Mar 5 '12 at 20:45
J _J _
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How to convert ASCII code (0-255) to its corresponding character?
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thefourtheye
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answered Oct 8 '11 at 0:28
Chathuranga ChandrasekaraCha...
Clear text from textarea with selenium
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IsaacIsaac
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What does “Could not find or load main class” mean?
...t their programs fail to run with the error message: Could not find or load main class ...
50 Answers
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