loop Archives - Crafty Techie

Store foreach Loop Value in Array: 4 PHP Code Examples (2023)

How to Store Loop Values in a PHP Array There are 3 steps to storing loop values in PHP arrays. You need to instantiate a PHP variable with an empty array. Then, you will run your requirements with a loop like foreach. Finally, you can check for any needed conditions and add a value to the newly instantiated array. Check out the remaining article for examples. Are you needing to store values from a loop in a new array? This article will break down some common scenarios that I have experienced throughout my programming career. Storing Foreach Loop Values In Array PHP Code Example <?php // Define an indexed array $numbers = [5, 4, 2, 6, 10]; // Define an empty array to store the resulting values $results = []; // Loop through the array using foreach loop // store any 2, 6, 10 values in the new array to…

Read JSON Files with PHP: 5 Code Examples (best in 2023)

JSON data can be accessed and utilized with many programming languages. In this article, we will learn how to read a JSON file in PHP. We will discuss all the methods used to read a JSON file, convert JSON objects into an array, and display it in PHP. Let’s first learn about what JSON is. Read a JSON file with a PHP code example <?php // Reads the JSON file. $json = file_get_contents('./test_data.json'); // Decodes the JSON file. $json_data = json_decode($json,true); // Display the JSON data. print_r($json_data); ?> Table of Contents What is JSON? Encode JSON Data in PHP. Decode JSON Data in PHP. Read a JSON File using the file_get_contents() Function in PHP. Read JSON Files with PHP Code Examples Explored. What is JSON? JSON stands for JavaScript object notation. The JSON data is written as name/value pairs, and it is basically a lightweight data-interchange format that is very…

PHP array_filter: 15 Array Filter Code Examples + Load Tests

How to use the PHP array_filter function to filter PHP Arrays Code Example <?php $dogBreedsILove = ["chihuaha", "collie", "golden retriever", "terrier"]; // I need all of the retreivers in the list. $retrievers = array_filter($dogBreedsILove, function ($breed) { return stripos($breed, "retriever"); } print_r($dagBreedsILove); PHP Array Filter Learning Path This article is part of our large series on filtering arrays. Feel free to browse through the articles we have listed below and dig further into some unique scenarios. These articles will help you level up your PHP development skills How to filter PHP associative array How to use Doctrine ArrayCollection map and filter functions Array of objects in PHP | How to create, sort, filter, merge & search them Filter an array of objects by values in PHP How to filter arrays of objects by keys in PHP Filter multidimensional array by value in PHP PHP Arrays Array Filter Load Testing: array_filter…

Save a PHP array in mySQL column This article explores how to save PHP arrays in MySQL. MySQL is an open-source relational database management system that allows you to store data in rows and columns. SQL stands for Structured Query Language for manipulating and retrieving data from SQL databases. Know more about MySQL. Before You Read! The article requires you to connect to your MySQL database with PHP, create a table and connect to it in PHP. If you’re not familiar with all these consider learning it from w3schools. Here we just focus on different ways of storing arrays in MySQL PHP. Storing Arrays in a Normalized Table Employees Table You need to create an employee table at your end if you’re trying out the examples in the article. For your convenience, here’s the SQL table creation code for you. CREATE TABLE EMPLOYEES_TABLE ( id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,…

Push multiple items to array PHP PHP arrays are dynamic, thus extendable at run time. It means that you can push multiple items to array PHP, and it won’t bother you with exceptions like a static array would in Java or C++. PHP array_push function is super helpful in pushing into an array though iteration also works. This article includes examples of pushing multiple items to an array. The first example uses a loop, followed by other examples of using array_push and array_merge. So, let’s just get to the examples now. Push multiple items to array PHP with loop We have an array of numbers from six to ten, and we need to push these to an array that already has numbers from one to five. The following example adds items iteratively to an array in PHP. <?php $numbers = [1, 2, 3, 4, 5]; $some_more_numbers = [6, 7, 8,…

Update key value in array PHP This article focuses on how to update key value in array PHP. Though the article includes three approaches, the second approach is the most efficient. Introduction PHP associative arrays are basically hash maps as they include key and value pairs. The keys are unique but mutable. Thus, we can update key value in array PHP, and that’s exactly what this article will focus on. Let’s begin. #1 - Update key value in array PHP using a loop The most obvious approach is using a loop. PHP foreach loop is convenient because it gives us easy access to key and value pairs. The following example will use a foreach loop to change key value in array PHP. <?php $students_score = [ "Alison" => 10, "Liam" => 9, "Jenny" => 8, "Jamie" => 7, "Ron" => 6 ]; function changeName($students_score, $oldName, $newName) { foreach($students_score as $student=>$score)…

PHP array_chunk with foreach loop Code Examples PHP array_chunk function helps partition an array in chunks. The length argument defines the length for the chunks. If the array is not evenly divisible, the last chunk could have less than the specified length. The article “array_chunk with examples” explains everything you need to know about this function. Nonetheless, the article includes a recap of the function to set the ground for the rest of the sections. This article features a scorecard use case where we may need array_chunk with foreach loop. Stay with us till the end to get the most out of this article. <?php $names_score = [ "Tyson" => 9, "Jackie" => 10, "Ron" => 15, "Maximillian" => 20, "Sus" => 24, "Ryder" => 25 ]; $names_score_chunks = array_chunk($names_score, 2, true); //Sets the preserve key argument to true. /* OUTPUT [ [ "Tyson" => 9, "Jackie" => 10 ],…

Append arrays in PHP There are many ways to append an array in PHP, and this article explores some of these options. Introduction Arrays in PHP are mutable meaning that you can add, remove and modify them in any way you want. You can add an element, or arrays to the end of an array, which we term as appending to arrays. This article explores how to append one array to another array in PHP. There are many options to explore so let’s cut the crap and jump straight to them. #1 - Append array in PHP using array_merge PHP array_merge function merges two or more arrays. This function is simplistic with a straightforward merging policy. After merging, it reindexes numeric arrays. However, in the case of similar string keys, it assigns the latest occurring value. The following example clarifies these caveats and demonstrates how to append to array PHP.…

How to loop through a multidimensional array in PHP Arrays are iterable data structures meaning that an iterator or a loop can access its elements. Loops are central to any programming language, and PHP also has several different loops. The foreach loop is quite famous for associative arrays in PHP. The foreach references keys and values as it loops through an associative array. It also relieves a programmer of the possibility of running over the array out-of-bounds error, thrown when an index exceeds the array’s limit. Besides foreach, PHP has for, while, and do-while loops. This article answers how to loop through a multidimensional array in PHP, and thus it will focus on the foreach loop. Nevertheless, you can read an in-depth article about the loops in PHP. Look Through PHP Multidimensional Arrays Using the foreach loop Let’s review the syntax of the foreach loop through an example. $arr =…

Using PHP array_values in a multidimensional array The array_values function retrieves the values from an associative array in PHP. It takes an array as an argument and returns an array including the values. The usage is straightforward for a linear associative array. However, things get complicated when PHP multidimensional array factors in. A multidimensional array can include numbers and levels of nested arrays, and a hard-coded approach does not go well with complexities. That’s why we seek a more generalized algorithm to use PHP array_values in a multidimensional array, and that’s precisely what this array intends to show you. So, before we come to the main course, let’s quickly review the PHP array_values function. PHP array_values - A review Here’s the function signature of the array_values. array_values(array $array): array The function receives an array and returns the retrieved values in an array. An example is as follows. PHP array_values Code…

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Tag: loop

Store foreach Loop Value in Array: 4 PHP Code Examples (2023)

Read JSON Files with PHP: 5 Code Examples (best in 2023)

PHP array_filter: 15 Array Filter Code Examples + Load Tests

How to Store a PHP Array in MySQL

How do you push multiple items to array PHP

How to update key value in an associative array PHP

How to Use array_chunk with foreach loop with PHP Code Example

How to append one array to another array in PHP

Loop Through Multidimensional Arrays: PHP Code Examples (2023)

array_values in PHP Multidimensional Array | 3 Code Examples