![]() Inside the loop, an IF condition is made to check whether array1 is greater than array1 value. Then a FOR LOOP is created to run the array elements. Here a variable was created with a false value at first. In the below program, a function is created, and also DO WHILE loop is implemented to implement the Bubble Sort technique. But here only swapping will be done only if the 2 nd element of the array is less than the 1 st element.Įcho "Sorted array with index values :: \n" įor ($i2 = 0 $i2 Sorted Array Elements List :: " Inside the function, WHILE LOOP is used to implement the Bubble Sort in PHP by swapping the adjacent elements. Then a variable is created to store the sorted array elements by calling the function inside of the variable. Then a loop is created at first to display the actual elements present in the array by using the length of the array as the loop condition. Then the size is calculated and stored in $len12. In the below example, an array variable is created and listed on the elements. Like this, we will get the sorted elements of the array. Then the array is mentioned with some elements inside of the function itself and again a FOR loop is created to call the sorted array values. 0 index value will be stored at 1 index value. If the array index of 0 value is greater than the array index of 1 value then 1 index value will be stored in 0 index value. Then the adjacent array values are compared. At first, the size of the array is calculated and stored and then started a loop and then again a loop started inside of the loop. In the below example, bubble sort is implemented using the FOR LOOP method. Examples to Implement Bubble Sort in PHPīelow are the different examples to implement Bubble Sort in PHP: Example #1 – Using for loop ![]() In every program, the logic will be the same but the syntax will be a little different. One is by using the FOR LOOP, the second one is by using the WHILE LOOP and the third one is by using the DO WHILE LOOP. There are different types of implementations of the Bubble Sort techniques in the PHP Programming language. Now the above scenario occurs by running the loop as the length of the array/size of the array which is passed inside of the program. Now the swapped element is now again compared with the 3 rd element and so on and if the condition is reached swapping will be done at all times up to the end of the array elements. Now 1 st element becomes the 2 nd element and vice versa. If the first element of the array is greater than the second then swapping of the elements will be done. If the first element/index value is greater than the second then the swapping of the elements will be done. Bubble Sort first compares the second element with the first element. But the following solution should work with iterators and does not require count.Web development, programming languages, Software testing & others Logic behind Bubble Sort in PHPīubble sort works by swapping adjacent elements repeatedly only if the elements are in the wrong order. I'm not sure how much overhead all the function invocation introduces. Although, you might want to benchmark the gist code if you're super concerned about efficiency. If you wanted to functionalize this kind of thing, I've taken a swing at such an iterateList function here. I haven't done benchmarking on this, but no logic has been added to the loop, which is were the biggest hit to performance happens, so I'd suspect that the benchmarks provided with the efficient answer are pretty close. # Special handling of the last item goes here ![]() # Special handling of the first item goes here The array_keys function can be used to make the efficient answer work like foreach: $keys = array_keys($arr) ![]() This answer avoids the overhead of a conditional statement for every iteration of the loop, as in most of these answers (including the accepted answer) by specifically handling the first and last element, and looping over the middle elements. The most efficient answer from unlike foreach, only works for proper arrays, not hash map objects. Your page could be made a lot more readable and maintainable by separating things like this: įoreach($subcat as $val) show_subcat($val) You could also avoid mixing HTML with php logic whenever possible. Removing all the formatting to CSS instead of inline tags would improve your code and speed up load time. You could remove the first and last elements off the array and process them separately. ![]()
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