Category: php 8.4

In PHP 8.3 and PHP 8.4, you can easily split the first 5 characters of a string using the substr() function. This function allows you to extract a portion of a string based on a starting position and length. Here’s how you can do it: Using substr() to Extract the First 5 Characters The substr() […]

`array_walk()` Function in PHP 8.2, PHP 8.3 & PHP 8.4 The `array_walk()` function in PHP is used to apply a user-defined function to each element of an array. It operates on the original array and can modify its values. Syntax: array_walk(array &$array, callable $callback, mixed $userdata = null): bool Example 1: Basic Usage <?php function […]

array_walk_recursive() Function in PHP 8.2, PHP 8.3 & PHP 8.4 The `array_walk_recursive()` function in PHP applies a user-defined function to every element of a multidimensional array. It works recursively, meaning it will process nested arrays as well. Syntax:- array_walk_recursive(array &$array, callable $callback, mixed $userdata = null): bool `$array`: The input array (passed by reference). `$callback`: […]

The `arsort()` function in PHP is used to sort an associative array in descending order while maintaining the index association. Syntax arsort(array &$array, int $flags = SORT_REGULAR): bool Example <?php $marks = [ “John” => 85, “Alice” => 92, “Bob” => 78, “David” => 88 ]; arsort($marks); // Sort in descending order while maintaining keys […]

The `asort()` function in PHP is used to sort an associative array in ascending order, while preserving the original key-value associations. Syntax: asort(array &$array, int $flags = SORT_REGULAR): bool Example:- <?php $fruits = [ “b” => “Banana”, “a” => “Apple”, “d” => “Dragonfruit”, “c” => “Cherry” ]; asort($fruits); // Sorts values while keeping keys print_r($fruits); […]

`compact()` Function in PHP 8.2, PHP 8.3 & PHP 8.4 The `compact()` function in PHP is used to create an associative array using variable names as keys and their corresponding values. It helps in dynamically constructing arrays from existing variables. Syntax: array compact(mixed $var_name, mixed …$var_names) Example: <?php $name = “John”; $age = 30; $city […]

`count()` Function in PHP 8.2, PHP 8.3 & PHP 8.4 The `count()` function in PHP is used to count the number of elements in an array or countable object. Syntax count(array|Countable $value, int $mode = COUNT_NORMAL): int Example 1: Counting Elements in an Array <?php $arr = [1, 2, 3, 4, 5]; echo count($arr); // […]

In PHP 8.4 (or PHP 8.2, as the latest stable version is 8.2), you can generate a 4-digit random OTP (One-Time Password) using various methods. Below are different approaches to achieve this: Method 1: Using `rand()` Function <?php // Generate a 4-digit random OTP $otp = rand(1000, 9999); echo “Random 4-digit OTP: ” . $otp; […]