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How-to articles, tricks, and solutions about PHP

Add 30 seconds to the time with PHP

You can use the strtotime function in PHP to add a specified number of seconds to a given time.

php time

PHP - setcookie(); not working

There are several reasons why the setcookie() function may not be working.

php cookies

file upload php $_FILES undefined index error

The error "Undefined index: (name of the file input)" in PHP usually occurs when the form that is used to upload the file is not properly configured.

php file undefined upload indexing

artisan migration error "Class 'Doctrine\\DBAL\\Driver\\PDOMySql\\Driver' not found"

This error message is indicating that the PHP extension for PDO MySQL is not installed or not enabled on your system.

php symfony laravel laravel-5

How I can put composite keys in models in Laravel 5?

In Laravel 5, you can specify a composite key on a model by defining a protected $primaryKey property on the model and setting it to an array of the column names that make up the primary key.

php laravel model composite-primary-key

Short unique id in php

In PHP, you can use the function uniqid() to generate a short unique ID.

php uniqueidentifier unique-index

TCPDF ERROR: [Image] Unable to get image

This error message is typically associated with the TCPDF library, which is a PHP class for generating PDF files.

php tcpdf

Assets not referencing to public folder (Laravel)

In the Laravel framework, the "public" folder is the web server's document root and it's where assets such as CSS, JavaScript, and images should be stored.

php laravel

php - Unknown: Failed opening required on line 0. laravel 5.6

This error message is typically caused by a problem with the file path specified in the "require" or "include" statement.

php xampp laravel-5.6

Proper Repository Pattern Design in PHP?

The Repository pattern in PHP is a design pattern that allows for the separation of the business logic of an application from the storage and retrieval of data.

php database laravel repository-pattern repository