I made code like this:
class Object {
function __get($name){
if(isset($this->{$name})){
return $this->{$name};
} else {
return null;
}
}
function __set($name, $value){
$this->{$name} = $value;
}
}
If I extend this class (I don't want to repeat this code every time), it says "Undefined variable". Is there any way to do it?
I'm using python to develop an app and want to view running processes.The code
txt = commands.getoutput("top -d 1")
print txt
gives an error "TERM Environment Variable not set"
Can someone tell me what this means and how to solve this
Using C++ and GCC, can I declare an extern variable that uses a specific address in memory?
Something like
int key attribute((__at(0x9000)));
AFAIK this specific option only works on embedded systems. If there is such an option for use on the x86 platform, how can I use it?
I am trying to number some rows on a bridge table with a single UPDATE/SELECT statement using a counter variable @row. For example:
UPDATE teamrank JOIN (SELECT @row := @row + 1 AS position, name FROM members)
USING(teamID, memberID) SET rank = position
Is something like this possible or do I need to create a cursor? If it helps, I am using MySQL 5.
Hi Guys,
I'm looking to test some code I've written and to do so I need to construct a variable of type Location and to give it a long / lat value but I'm unsure how I would do so. Any ideas?
I have a form with many fields...
The action is set to a php page which queries mysql...
Should I sanitize with mysql_real_escape_string every single variable?
Or can I ignore sanitizing drop-lists and radios for instance?
Also, besides mysql_real_escape_string, what else should I do to prevent attacks?
Thanks
I am having trouble writing C++ code that uses a header file designed for a C file. In particular, the header file used a variable name called class:
int BPY_class_validate(const char *class_type, PyObject *class, PyObject *base_class, BPY_class_attr_check* class_attrs, PyObject **py_class_attrs);
This works in C as class isn't taken as a keyword, but in C++, class is. So is there anyway I can #include this header file into a c++ file, or am I out of luck?
Thank you.
I have a level class and a Enemy_control class that is based off an vector that takes in Enemys as values.
in my level constructor I have:
Enemy tmp( 1200 );
enemys.Add_enemy( tmp ); // this adds tmp to the vector in Enemy_control
enemys being a variable of type Enemy_control. My program crashes after these statements complaining about some destructor problem in level and enemy_control and enemy.
Any ideas?
Can I use zend Registry to save variable to use in other controller?
this is my code that don't work in another controller:
Zend_Registry::set('id', $Id);
I have a javasrcript variable
var hash = {
'.bmp' : 1,
'.gif' : 1,
'.jpeg' : 1,
'.jpg' : 1,
'.png' : 1,
'.tif' : 1,
'.tiff' : 1,
};
I want to display the values (.bmp, .gif, .jpeg, .jpg, .png, .tif, .tiff) of this "hash" object in my alert message. How can I do this? Please help.
How do I export an environment variable from within a Ruby script to the parent shell? For example, implementing a naïve implementation of the /usr/bin/read utility:
#!/usr/bin/ruby
varname = ARGV[0]
ENV[varname] = STDIN.gets # but have varname exported to the parent process
I have constructed the following -
`$format_$game_$name_$season`
4 variables with underscores between. Should this work, or will it act as one variable?
THankyou
In this code snippet:
use strict;
use warnings;
use Data::Dumper;
my $r = [qw(testing this thing)];
print Dumper($r);
foreach my $row (@({$r})
{
print "$row\n";
$row .= 'mod';
}
print Dumper($r);
print Dumper(@({$r});
I figured out that the '(' after the '@' in the foreach is causing this not to loop correctly. I have no idea why this code even works as there is no ending parenthesis. What is this doing? It looks to be creating a new variable on the fly, but shouldn't 'use strict' have fired or something?
Please help explain what that '@(' is doing and why it still runs without an ending parenthesis.
Hey guys,
a quick question, I have data of the following sort:
Ticker _ Date _ Fem Analyst (dummy 1 if true)
AA _ 04/2001 _ 1
AA _ 04/2001 _ 1
AA _ 04/2001 _ 1
AA _ 05/2002 _ 1
AA _ 05/2002 _ 1
AA _ 07/2002 _ 0
AA _ 04/2003 _ 1
and so on.. What I want to receive is the following:
Ticker _ Date _ Number of fem analyst
AA _ 04/2001 _ 3
AA _ 05/2002 _ 2
AA _ 07/2002 _ 0
AA _ 04/2003 _ 1
So an easy counting algorithm that allows me to count for the number of analysts per company per month (the date is in 01/04/2002 format but I also have a month count variable which can be used too)
Any ideas?
Hi,
In android, is it recommend to use static variable?
E.g, implement a Singleton pattern in Java, I usually do:
private static A the_instance;
public static A getInstance() {
if (the_instance == null) {
the_instance = new A();
}
return the_instance;
}
My question is when do that get free by android JVM?
Thank you.
how i suppose to do to read global variable in actionscript 2.0?
i've declared _global.MyVar="dummyContent";
may i write MyVar="anotherContent";?
or it should _global.MyVar="anotherContent"?
Hi,
I have been working with C# so this is quite strange for me:
while($variable=mysql_fetch_assoc)
I have not been able to look up in PHP manual how it works. I guess that in each loop it advances to next element of assoc.array. But what is this generally called in PHP? I am just not used to see '=' in loop condition.
I added following line of code in .vimrc
let g:jslint_status = 'enabled'
if exists("jslint_status")
echo jstlint_status
else
echo 'not found'
endif
Error message
E121: Undefined variable: jstlint_status
E15: Invalid expression: jstlint_status
What am I doing wrong?
I have a text file test.txt with the following content:
text1
text2
And I want to assign the content of the file to a UNIX variable but when I do this:
testvar=$(cat test.txt)
echo $testvar the reult is:
text1 text2
instead of
text1
text2
Can someone suggest me a solution for this?