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In where shall I use isset() and !empty()
...is not an effective way to validate text inputs and text boxes from a HTML form.
17 Answers
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Passing an array by reference
...yArray)
^ Pass an array. Array decays to a pointer. Thus you lose size information.
void Func(int (*myFunc)(double))
^ Pass a function pointer. The function returns an int and takes a double. The parameter name is myFunc.
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DropDownList in MVC 4 with Razor
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You have to be careful as none of the posted solutions perform any kind of server-side validation. Here's an elegant solution that performs both client-side and server-side validation to ensure valid data is posted to the model. stackoverflow.com/a/56185910/3960200
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Running a Python script from PHP
...t a quick reminder for those trying to use shell_exec on a
unix-type platform and can't seem to get it to work. PHP executes as
the web user on the system (generally www for Apache), so you need to
make sure that the web user has rights to whatever files or
directories that you are trying to...
Why are iframes considered dangerous and a security risk?
... If you have a lot of third party scripts on your site you need to isolate forms from them. One suggested way of doing that was putting the form in its own minimal page with no third-party javascript, and displaying it in an iframe in the host page. hackernoon.com/…
– Gordo...
mysql - how many columns is too many?
...e tables, rows and columns, work within that constraint if you want max performance, mimic your objects for convenience at the sake of performance. So should every piece of information about a person be stored within the same row? no, break them out and group them into different tables (using my ex...
Python add item to the tuple
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#1 form
a = ('x', 'y')
b = a + ('z',)
print(b)
#2 form
a = ('x', 'y')
b = a + tuple('b')
print(b)
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WPF User Control Parent
...u know why this is? The user control has a parent which is the containing form. How do I get a handle to this form?
– Peter Walke
Jun 5 '09 at 15:44
2
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Why does the CheckBoxFor render an additional input tag, and how can I get the value using the FormC
...pproach that both Ruby on
Rails and MonoRail use.
When you submit a form with a checkbox, the value is only posted if
the checkbox is checked. So, if you leave the checkbox unchecked then
nothing will be sent to the server when in many situations you would
want false to be sent instead....
Django template how to look up a dictionary value with a variable
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Since I can't comment, let me do this in the form of an answer:
to build on culebrón's answer or Yuji 'Tomita' Tomita's answer, the dictionary passed into the function is in the form of a string, so perhaps use ast.literal_eval to convert the string to a dictionary fir...