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How to fix “Headers already sent” error in PHP
...e.
summary ⇊
Otherwise the call fails:
Warning: Cannot modify header information - headers already sent (output started at script:line)
Some functions modifying the HTTP header are:
header / header_remove
session_start / session_regenerate_id
setcookie / setrawcookie
Output can be:
Uni...
Unable to copy file - access to the path is denied
...
In my case, even closing VS was not enough to free the folder and allow me to delete it - ProcessExplorer showed that "VBCSCompiler.exe" was still using it. In this case, signing out of and into Windows (or just killing the process) did the trick, allowing me to rebuild ...
How to get my IP address programmatically on iOS/macOS?
...hUTF8String:addrBuf];
}
}
}
// Free memory
freeifaddrs(interfaces);
}
return [addresses count] ? addresses : nil;
}
EDIT1: Code updated on May 16, 2014 (bug pointed out by lhunath, see comments). Loopback addresses now returned, but its e...
Correct approach to global logging in Golang
...us output to stderr or stdout as well as file.
Standard log levels (Debug, Info, etc.) as well as freely-configurable multi-level logging.
On demand logging of caller info (file, line number, function).
Ability to set different log levels for different source files.
It is very small, has no extern...
Is there a REAL performance difference between INT and VARCHAR primary keys?
...7500U CPU @ 2.70GHz × 4
15.6 GiB RAM, of which I ensured around 8 GB was free during the test.
148.6 GB SSD drive, with plenty of free space.
Ubuntu 16.04 64-bit
MySQL Ver 14.14 Distrib 5.7.20, for Linux (x86_64)
The tables:
create table jan_int (data1 varchar(255), data2 int(10), myindex tinyi...
Dynamic type languages versus static type languages
...guage. Statically typed languages strictly could be said to not be context free. The simple truth is that it becomes inconvenient to express a language sanely in context free grammars that doesn't treat all its data simply as bit vectors. Static type systems are part of the grammar of the language i...
Simulate limited bandwidth from within Chrome?
...
A warning: Charles is not free
– Charlie
Oct 23 '13 at 16:35
8
...
How to connect to LocalDB in Visual Studio Server Explorer?
...er
Open command prompt
Run SqlLocalDB.exe start v11.0
Run SqlLocalDB.exe info v11.0
Copy the Instance pipe name that starts with np:\...
In Visual Studio select TOOLS > Connect to Database...
For Server Name enter (localdb)\v11.0. If it didn't work, use the Instance pipe name that you copied ea...
How to exit from the application and show the home screen?
...
never use this, because it gets no chance to free resources
– LiangWang
Aug 13 '13 at 4:41
1
...
Is it better practice to use String.format over string Concatenation in Java?
...ing, i, +i * 2);
}
long end = System.currentTimeMillis();
log.info("Format = " + ((end - start)) + " millisecond");
start = System.currentTimeMillis();
for (int i = 0; i < 1000000; i++) {
String s = "Hi " + i + "; Hi to you " + i * 2;
}
end = System.current...