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Is there any way to put malicious code into a regular expression?
...o solve. These may only show up on particular input data, but one can generally create one wherein this doesn’t matter.
Which ones these are will depend somewhat on how smart the regex compiler you’re using happens to be, because some of these can be detected during compilation time. Regex com...
Convert a bitmap into a byte array
...n saving to memory or disk.
Source: http://www.vcskicks.com/image-to-byte.php
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How to programmatically empty browser cache?
...s ctime, (or mtime), you can just add said time behind it. For instance in php, myfile.js?v=<?=filectime('myfile.js');?>, and there you've got yourself an auto updating cache for your resources.
– Pierre-Antoine Guillaume
Jan 2 '18 at 9:21
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How do I do a multi-line string in node.js?
...offeescript. :P But, I'm definitely a fan of the ''' string block! Or... PHP heredoc syntax.
– BMiner
Jul 13 '11 at 18:25
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Styling an input type=“file” button
... is explained here. Just putting that link here, since this answer is basically a link-only answer anyway.
– Joeytje50
May 7 '14 at 16:30
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Using getopts to process long and short command line options
...or using the bash builtin getopts to mimic long options. That solution actually makes a short option whose character is "-". So you get "--" as the flag. Then anything following that becomes OPTARG, and you test the OPTARG with a nested case.
This is clever, but it comes with caveats:
getopts ca...
Is a url query parameter valid if it has no value?
...ring)
Most other URI-parsing APIs following something similar to this.
PHP parse_url, follows as similar implementation but only returns the string for the query. Parsing into an object of k=>v requires parse_string()
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Sticky and NON-Sticky sessions
..., a session object is created and remains in the memory of the web server. All the requests from the client go to this web server and update this session object. If some data needs to be stored in the session object over the period of interaction, it is stored in this session object and stays there ...
How to trick an application into thinking its stdout is a terminal, not a pipe
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I don't know if it's doable from PHP, but if you really need the child process to see a TTY, you can create a PTY.
In C:
#include <stdio.h>
#include <stdlib.h>
#include <sysexits.h>
#include <unistd.h>
#include <pty.h>
int ma...
Difference between left join and right join in SQL Server [duplicate]
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@SilapAliyev That's actually a very good question. Can anyone answer? :D
– Ian Chu Te
Jan 8 '16 at 2:46
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