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In where shall I use isset() and !empty()
I read somewhere that the isset() function treats an empty string as TRUE , therefore isset() is not an effective way to validate text inputs and text boxes from a HTML form.
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Batch files - number of command line arguments
...iant of for only works for arguments that look like file names, not option strings such as -?. Using quotes (for %%i in ("%*") ...) works for argument like -? but again fails for quoted arguments because of nested quotes. The only robust way seems to involve shift...
– Ferdin...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...ver=utf8mb4, and leave characterEncoding out of the Connector/J connection string. Connector/J will then autodetect the UTF-8 setting.
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sys.argv[1] meaning in script
...evel.
For every invocation of Python, sys.argv is automatically a list of strings representing the arguments (as separated by spaces) on the command-line. The name comes from the C programming convention in which argv and argc represent the command line arguments.
You'll want to learn more about l...
Does Javascript pass by reference? [duplicate]
...alue". Both pass a copy of the value whether that value is a number, bool, string, or reference.
– gman
Aug 13 '16 at 18:09
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How to dynamically load a Python class
Given a string of a Python class, e.g. my_package.my_module.MyClass , what is the best possible way to load it?
10 Answers...
External template in Underscore
... var tmpl_url = tmpl_dir + '/' + tmpl_name + '.html';
var tmpl_string;
$.ajax({
url: tmpl_url,
method: 'GET',
dataType: 'html', //** Must add
async: false,
success: function(data) {
tmpl_string = data;
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Set Django IntegerField by choices=… name
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FWIW, if you need set it from a literal string (perhaps from a form, user input, or similar) you can then just do: thing.priority = getattr(thing, strvalue.upper()).
– mrooney
Feb 24 '13 at 23:22
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Get Root Directory Path of a PHP project
... is what you are looking for, isn't it?
In that case you could explode the string by slashes and return the first one:
$pathInPieces = explode('/', $_SERVER['DOCUMENT_ROOT']);
echo $pathInPieces[0];
This will output the server's root directory.
Update: When you use the constant DIRECTORY_SEPARAT...
Is it possible for a computer to “learn” a regular expression by user-provided examples?
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Yes, it's certainly "possible"; Here's the pseudo-code:
string MakeRegexFromExamples(<listOfPosExamples>, <listOfNegExamples>)
{
if HasIntersection(<listOfPosExamples>, <listOfNegExamples>)
return <IntersectionError>
string regex = "";
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