Reset PHP Array Index
The array_values() function [docs] does that:
arrays
What is the best way to delete a value from an array in Perl?
Use splice if you already know the index of the element you want to delete. Grep works if you are searching. If you need to do a lot of these, you will get much better performance if you keep your array in sorted order, since you can then do binary search to find the necessary … Read more
Display array values in PHP
There is foreach loop in php. You have to traverse the array. If you simply want to add commas between values, consider using implode
Multidimensional Arrays lengths in Java
This will give you the length of the array at index i It’s important to note that unlike C or C++, the length of the elements of a two-dimensional array in Java need not be equal. For example, when pathList is instantiated equal to new int[6][], it can hold 6 int [] instances, each of which can be a different length. … Read more
GCC: Array type has incomplete element type
It’s the array that’s causing trouble in: The second and subsequent dimensions must be given: Or you can just give a pointer to pointer: However, although they look similar, those are very different internally. If you’re using C99, you can use variably-qualified arrays. Quoting an example from the C99 standard (section §6.7.5.2 Array Declarators): Question … Read more
Initializing 2D char array in C
I think pictures help. Here is char newarray[5][10]. It is a single memory block consisting of an array of 10 characters, and an array of five of those. You could just clear it with a single memset call. Here is char **array. It says array is a pointer. What is it a pointer to? a pointer to a character. Keep in … Read more
How to initialize an array’s length in JavaScript?
Why do you want to initialize the length? Theoretically there is no need for this. It can even result in confusing behavior, because all tests that use the length to find out whether an array is empty or not will report that the array is not empty.Some tests show that setting the initial length of large arrays can be more efficient … Read more
PHP Multiple Checkbox Array
You pass the form name as an array and then you can access all checked boxes using the var itself which would then be an array. To echo checked options into your email you would then do this: Please keep in mind you should always sanitize your input as needed. For the record, official docs … Read more
Pointer to 2D arrays in C
Using pointer2 or pointer3 produce the same binary except manipulations as ++pointer2 as pointed out by WhozCraig. I recommend using typedef (producing same binary code as above pointer3) Note: Since C++11, you can also use keyword using instead of typedef in your example: Note: If the array tab1 is used within a function body => this array will be placed within the call stack memory. But the stack size is limited. Using … Read more
C: warning: excess elements in array initializer; near initialization for ‘xxx’ ; expects ‘char *’, but has type ‘int’
Two errors here: first, you’re trying to declare arrays[63] for storing 64 elements, as you’ve probably confused the size of array (n) with the maximum possible index value (that’s n – 1). So it definitely should be litera[64] and liczba[64]. BTW, you have to change this line too – while (i<=64): otherwise you end up trying to access 65th element. And second, you’re trying … Read more