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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to add more values to the array on a button click using PHP?
Adding more values to an array on a button click in PHP requires combining PHP server-side processing with HTML forms. This functionality is essential for creating dynamic web applications where users can modify array data through user interactions. Using HTML Forms The most straightforward approach uses an HTML form to submit new values to PHP, which then adds them to the array ? Add Values to Array ...
Read MoreHow does Python compare to PHP in ease of learning for new programmers?
When comparing Python and PHP for new programmers, both languages offer unique advantages, but they differ significantly in learning curve, syntax clarity, and career opportunities. Let's explore how these languages compare for beginners. Python: Beginner-Friendly Design Python is widely regarded as an excellent first programming language due to its emphasis on readability and clean coding practices. Key Advantages for Beginners Python enforces proper coding techniques through mandatory indentation, making code naturally readable and well-structured. It's strongly typed, preventing common beginner mistakes like mixing incompatible data types. The language's syntax is intuitive and closely resembles natural English. ...
Read MoreHow to make Laravel (Blade) text field read-only?
In Laravel Blade templates, you can make text fields read-only using Laravel's Form facade or plain HTML input elements. This prevents users from editing the field while still displaying the value. Installation: For Laravel Form facade, install the package: composer require laravelcollective/html Setting up Routes and Views First, let's create a basic route that passes data to our Blade template − Create hello.blade.php in the resources/views/ folder − {{ $mymsg }} Welcome to Tutorialspoint Using Laravel Form Facade The Form facade provides ...
Read MoreHow to remove a parameter from all Request Objects at Controller Level in Laravel?
In Laravel, you can remove specific parameters from Request objects in your controller using several methods. This is useful for filtering unwanted data before processing or validation. Using unset() Method The simplest approach is using PHP's built−in unset() function to remove parameters directly from the request object ? Array ( [_token] => nUXVJ5adsFLADKC9RCbAJcdfYCRquy8GUkUCXtR8 [name] => Rasika Desai [email] => rasika@gmail.com [age] => 20 [address] => Pune ) Array ( [_token] => nUXVJ5adsFLADKC9RCbAJcdfYCRquy8GUkUCXtR8 ...
Read MoreHow to validate aninput field if the value is not NULL in Laravel?
In Laravel, you can validate input fields to ensure they are not NULL using the Validation class. The required rule is the most common way to validate that a field is not null or empty. Basic Validation Syntax The Validator::make() method takes two arguments − the data to validate and the validation rules ? In this example, the name field is required and must have at least 5 characters. Complete Validation Example Here's a complete controller example that validates multiple fields for non-null values ? ...
Read MoreHow to validate exact words in Laravel?
Laravel provides several methods to validate exact words in your application. The most common approaches include using Rule::in method, in: validation rule, and regular expressions for precise word matching. Using Rule::in Method The Rule::in method validates that the field value matches one of the specified values exactly. To use this method, you need to import the Rule class ? Make sure to include: use Illuminate\Validation\Rule; at the top of your file. Here the input array has category values ABC and XYZ, but Rule::in expects ABC and TIK. Since XYZ doesn't ...
Read MoreHow to execute zombie and orphan process in a single C program?
In this section we will see how to execute zombie process and orphan process in a single program in C. Before going to the main discussion, let us see what are the zombie process and orphan process. Zombie Processes A zombie process is a process whose execution is completed but it still has an entry in the process table. Zombie processes usually occur for child processes, as the parent process still needs to read its child's exit status. Once this is done using the wait system call, the zombie process is eliminated from the process table. This is ...
Read MoreHow to validate Route Parameters in Laravel?
In Laravel, route parameter validation ensures that URLs match specific patterns before executing route handlers. Laravel provides several built−in methods to validate route parameters, making your application more secure and predictable. Route Parameters Syntax Route parameters are defined within curly braces and can contain alphanumeric characters and underscores ? Multiple Route Parameters You can define multiple parameters in a single route ? Optional Parameters Optional parameters are denoted with ? and require default values ? Using where() Method The where() ...
Read MoreHow to pass a CSRF token with an Ajax request in Laravel?
CSRF stands for Cross-Site Request Forgeries. CSRF is a malicious activity performed by unauthorized users acting to be authorized. Laravel protects such malicious activity by generating a csrf token for each active user session that must be included with Ajax requests. Generating CSRF Token You can get the token in two ways − By using $request→session()→token() By using the csrf_token() method directly Example Output The output for above is − 13K625e8mnDna1oxm9rqjfAPfugtTlYdndBoNR4d 13K625e8mnDna1oxm9rqjfAPfugtTlYdndBoNR4d CSRF Token in Blade Template Inside blade template you can make ...
Read MoreHow to compare two encrypted (bcrypt) passwords in Laravel?
In Laravel, you can use the Hash facade to securely work with passwords using bcrypt encryption. The Hash facade provides methods to hash passwords and verify plain text against hashed passwords. Note: This tutorial requires Laravel framework setup. Install Laravel using composer create-project laravel/laravel myapp and configure your environment. Hash Facade Setup To work with the Hash facade, import it in your controller − use Illuminate\Support\Facades\Hash; The hashing configuration is available in config/hashing.php where bcrypt is set as the default driver. Hashing Passwords Use the make() method to hash ...
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