Find element by value in array and unset element

Find element by value in array and unset element

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I have a next array structure:

Array
(
    [0] => Array
        (
            [45] => Array
                (
                    [0] => 1 day
                )

        )

    [1] => Array
        (
            [45] => Array
                (
                    [0] => - None -
                )

        )

)

I need to find an element by value '- None -' and unset fully the next element:

[1] => Array
        (
            [45] => Array
                (
                    [0] => - None -
                )

        ) 

Does any ideas, guys?


Try to use next foreach loop:

foreach($ar as $key=>$row){
    foreach($row as $ind=>$val){
        if ($val[0] == '- None -') unset($ar[$key]);
    }
}

Demo

It will check the lowest level value and unsets the row if it's true.

9 Ways To Remove 🗑 Elements From A JavaScript Array [Examples], JavaScript arrays allow you to group values and iterate over them. So, how do you delete an element from a JavaScript array? I find this useful because I often want to retain an original data source, but retrieve subsets� Else, initialize mid and low as the corner points of the array A and start the binary search in array A and get mid = (high + low)/2. If A[mid] = B[mid] then search for an element in the right part by making low as mid. Else, search for an element in the left part by making high as mid.


We can use a simple recursion strategy to deeply remove the - None - values and return either true or false to parent level looping.

If we receive a true from our child level, we unset() the current index in the current level array. If we receive a false, everything moves as normal.

<?php

function removeNoneElements(&$arr){
    $temp = $arr;
    $hasNone = false;
    foreach($temp as $index => $val){
        if(is_array($val)){
            $containsNone = removeNoneElements($val);
            if($containsNone){
                $hasNone = true;
                unset($arr[$index]);
            }
        }else if($val === '- None -'){
            unset($arr[$index]);
            $hasNone = true;
        }
    }

    return $hasNone;
}

Demo: https://3v4l.org/N3AP3

Remove Element from an Array in JavaScript, Finding the location by value can be done with the indexOf() method, which returns the index for the first occurrence of the given value, or -1 if it is not in the array. In this, search a sorted array by repeatedly dividing the search interval in half. Begin with an interval covering the whole array. If the value of the search key is less than the item in the middle of the interval, narrow the interval to the lower half. Otherwise narrow it to the upper half.


You can try this (I made this on a single array cause I don't know what really is your logic).

$found = false;
foreach($elems as $elem){
    if($found){
        unset($elem);
        $found = false;
    }
    $found = ($elem == " - None");   
}

How to delete an array element based on key in PHP , Using unset() Function: The unset() function is used to remove element from the array. The unset function is used to destroy any other variable� Given an array of length n, we need to find the Array elements with least value and greatest value. Approach 1: In this approach, we simply sort the given array to get the increasing order of the elements. After getting the sorted array, we can say that the first element in the sorted array has the least value. So this element is the min_ele


Removing Array Element and Re-Indexing in PHP, In order to remove an element from an array, we can use unset() function array_values(): This function returns all the values from the array and indexes the � PHP deleting elements of an array by unset ( key or value ) We can remove an element from an array by using unset command. However unset command is used to destroy any other variable and same way we can use delete any element of an array. This unset command takes the array key as input and removed that element from the array.


How to Remove Array Element by Value in JavaScript, The best way to remove an element from an array based on the value in JavaScript is to find index number of that value in an array using� Return Value: This method return the first element that matches the conditions defined by the specified predicate if it is found. Otherwise, it returns the default value for type T. Exception: This method throws ArgumentNullException if the array is null or match is null. Below programs illustrate the use of Array.Find(T[], Predicate) Method


array_filter - Manual, array_filter — Filters elements of an array using a callback function I can't get into detail here, I just wanted to provide a hint about where this stuff also shows up and the This function filters an array and remove all null values recursively. The array is a sorted rotated array. The goal is to find the number of elements in the array that are equal to or less than the given number K. Approach is to traverse the whole array and count such elements which are either less or equal to K. Input Arr[]= { 1,2,3,4,9,8,10 } K=4 Output Elements less than or equal to 4 : 4