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Can I use a function for a default value in MySql?
... update previously existing rows, like this:
UPDATE app_users SET uuid = (SELECT uuid());
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Still Reachable Leak detected by Valgrind
...d are almost always leaks.
Here is an example
int foo(void)
{
static char *working_buf = NULL;
char *temp_buf;
if (!working_buf) {
working_buf = (char *) malloc(16 * 1024);
}
temp_buf = (char *) malloc(5 * 1024);
....
....
....
}
Valgrind will report wo...
Download multiple files as a zip-file using php
How can I download multiple files as a zip-file using php?
4 Answers
4
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Where is the php.ini file on a Linux/CentOS PC? [duplicate]
...In your terminal/console (only Linux, in windows you need Putty)
ssh user@ip
php -i | grep "Loaded Configuration File"
And it will show you something like this Loaded Configuration File => /etc/php.ini.
ALTERNATIVE METHOD
You can make a php file on your website, which run: <?php phpinfo()...
Convert a string representation of a hex dump to a byte array using Java?
...;
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+ Character.digit(s.charAt(i+1), 16));
}
return data;
}
Reasons why it is an improvement:
Safe with leading zeros (unlike BigInteger) and wit...
MySQL: Large VARCHAR vs. TEXT?
... @Pacerier another interesting example is mentioned in the comments of the selected answer, basically he had a front-end limit of 2,000 characters but the characters introduced were in a codepage that in reality used more bytes than normal letters, his database ended up needing space for 24k charact...
Case objects vs Enumerations in Scala
...B', 3)
, KNIGHT('N', 3)
, ROOK('R', 5)
, PAWN('P', 1)
;
private char character;
private int pointValue;
private ChessPiece(char character, int pointValue) {
this.character = character;
this.pointValue = pointValue;
}
public int getCharacter() {
return character;
...
How to install the Raspberry Pi cross compiler on my Linux host machine?
...{lib,usr} $HOME/raspberrypi/rootfs
where 192.168.1.PI is replaced by the IP of your Raspberry Pi.
Now, we need to write a cmake config file. Open ~/home/raspberrypi/pi.cmake in your favorite editor and insert the following:
SET(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_SYSTEM_VERSION 1)
SET(CMAKE_C_COM...
Keep only first n characters in a string?
... are you'.substring(0,8);
Which returns the string starting at the first character and finishing before the 9th character - i.e. 'Hiya how'.
substring documentation
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How to convert UTF-8 byte[] to string?
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LINQ it: var decBytes2 = str.Split('-').Select(ch => Convert.ToByte(ch, 16)).ToArray();
– drtf
Jul 13 '14 at 14:43
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