Sort a multidimensional array by size value

When uploading images via HTTP I get the following array. How can I sort them by the size of the images in descending order, so the biggest size images would be uploaded the first and the smallest size the last? Array ( "name" => Array ( [0]

C - strange complaint of Valgrind in the code array

I have an array-backed stack implementation working for my operating systems course in C. I've nailed down all of the leaks, but Valgrind is still complaining about something that I can't grok: ==8162== Invalid read of size 8 ==8162== at 0x400E90: sh

JavaScript: Automatically update the length property

This is not actually a jQuery question, but jQuery does something I would like to be able to do with other objects. I notice that jQuery returns the number of elements using the .length property. However, the jQuery object is not actually an array, s

Store the last line of the file in a table continuously in PHP

So i have a little issue with some PHP read functionality. What I am trying to do is basically grab data into an array from a file that is being continuously updated from a python script reading values from a micro controller. So basically, the file

Recursive search for a substring in an array with strings

For the next array, the keys of each sub-array indicates the node-id (0) and category name (1) . What i am trying to do is to find the parent node-id for each sub-category. For example, the parent id for '3968976031' is '10176091' and the parent id f

How to count the table with the group by

I have an array Array ( [0] => stdClass Object ( [id] => 226 [city] => Dhaka ) [1] => stdClass Object ( [id] => 228 [city] => Charleston County ) [2] => stdClass Object ( [id] => 229 [city] => Dhaka ) [3] => stdClass Object (

Correct way to pass a PHP $ variable to MySQLI

This question already has an answer here: How can I prevent SQL injection in PHP? 28 answers I am wondering about the safe or correct way to pass a $variable to a query. I am new to PHP thats why I am asking such beginner question. Here is the exampl

Simple C ++ exchange function

Why is it that if I have a function like this, to swap two numbers, it doesn't work[swap], (I know I can do this by declaring pointers in the prototype, and then pass the address of the respective variables in main()), but works for array, without ha

Stop the string array

How to stop sting array. If I set maximum 40 char that can be put, but I dont want to fill the whole string with 40 char. Here are my code for write char at string array. int main(void) { char data[1][40]; int i1 = 0; int i2 = 0; serial_init(); while

Code gets slower as more canned berries are allocated

Edit: It turns out that things generally (not just array/ref operations) slow down the more arrays have been created, so I guess this might just be measuring increased GC times and might not be as strange as I thought. But I'd really like to know (an

Distance to non-consecutive elements in a numpy array

Using numpy or itertools is there a efficient way to determine the distance to next non-consecutive elements. > import numpy as np > a=np.array(['a','b','b','c','d','a','b','b','c','c','c','d']) I would want the output to be. [1, 2, 1, 1, 1, 1, 2, 1

Foreach a specific array key

I have an array with 2 same keys i want to foreach out if possible. The currently code looks like: $arrayName = array( 1 => array('detail' => 'detail1' , 'detail' => 'detail2') ); foreach ($arrayName[1] as $key['detail'] => $value) { echo $val

binary search from the text exercise

Write a program the reads whole numbers from a text file and then sorts the numbers. Then using the binary search algorithm from your notes (week6) Ask the user to enter a number and display what position the number is or not found if the number is n

Regex consecutively-replaces separate values

Reading a raster grid file into @grid containing arbitrary numbers, like 82 8 98 98 42 12 3342 321 34 34 09434 9232 (and many more of those rows). Herein, I do like to replace some numbers, like 34 with 42. But only single, separated numbers! Eg. I d

Java: A painting inside a painting?

I was wondering if I could have an array inside of an array? I can't think of a way to explain it. if (numOfPlayers >= 2) { this.config.getString("Tribute_one_spawn"); String[] onecoords = this.config.getString("Tribute_one_spawn").

C ++ - array of characters and the null character

I have two questions about char array. from the code bellow, since arr is const, why doesn't the compiler give me an error since I'm rewriting it? char arr[5]; // arr is a const pointer to (*)[5] array cin>>arr; // when I initialized a char array li

Java ArrayIndexOutOfBoundsException in Tic-Tac-Toe

This question already has an answer here: How to avoid ArrayIndexOutOfBoundsException or IndexOutOfBoundsException? [duplicate] 2 answers I'm making a simple Tic-Tac-Toe program but I'm getting java.lang.ArrayIndexOutOfBoundsException if my input goe

Programming of C programming pointer tables

The line *array[cnt] = thing causes a seg fault and I don't know why. Any ideas to fix this? long *Load_File(char *Filename, int *Size) { FILE *fp; if((fp = fopen(Filename,"r")) == NULL) { printf("Cannot open file.\n"); exit(-1); } fsc