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Multiple glibc libraries on a single host
...ed by them, but if they're not also compiled to use the newer glibc (for example, if they're stock binaries like bash), they won't launch.
– HighCommander4
Jun 5 '16 at 2:22
...
Bash: infinite sleep (infinite blocking)
...s. Following uses bash 4, 2 PIDs and 1 fifo:
bash -c 'coproc { exec >&-; read; }; eval exec "${COPROC[0]}<&-"; wait'
You can check that this really blocks with strace if you like:
strace -ff bash -c '..see above..'
How this was constructed
read blocks if there is no input data ...
IIS_IUSRS and IUSR permissions in IIS8
...IS worker processes run third-party code by default (Classic ASP, ASP.NET, PHP code), it was time to isolate IIS worker processes from other Windows system services and run IIS worker processes under unique identities. The Windows operating system provides a feature called "Virtual Accounts" that al...
HTTP authentication logout via PHP
...lso works (a "disconnect" link to this URL) instead of an http redirect in PHP... any downside to that?
– moala
Mar 21 '12 at 13:40
4
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Execute raw SQL using Doctrine 2
...for running raw queries in Doctrine 2: forum.symfony-project.org/viewtopic.php?f=23&t=37872
– Jason Swett
Mar 30 '12 at 15:11
...
Easily measure elapsed time
...docs on cppreference, "This clock is not related to wall clock time (for example, it can be time since last reboot), and is most suitable for measuring intervals."
– cylus
Jan 26 '17 at 17:30
...
Reset all changes after last commit in git
...rflow.com/q/25554504/456645. In this example, assume some folders have no PHP files. git clean -fd will delete those folders and untracked files. Tested with git version 1.9.1
– bitsoflogic
Jan 20 '15 at 17:24
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When to use reinterpret_cast?
...endor APIs over which the programmer has no control. Here's a contrived example where a vendor provides an API for storing and retrieving arbitrary global data:
// vendor.hpp
typedef struct _Opaque * VendorGlobalUserData;
void VendorSetUserData(VendorGlobalUserData p);
VendorGlobalUserData VendorG...
PHP expects T_PAAMAYIM_NEKUDOTAYIM?
...ember called $mouse, then foreach($cats as cat::$mouse) is perfectly valid php, but a statement with anything other than :: after the cat would be a syntax error. If $mouse were not a declared property of cat you would get a fatal error, but still not a syntax error.
– chiliNUT...
Which regular expression operator means 'Don't' match this character?
...its while [\D] matches anything but the 0-9 digits, and so on.
If you use PHP you can take a look at the regex character classes documentation.
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