For web applications, importing Excel sheet data into our database and exporting data from the database into an Excel sheet, is an important feature. Because of this feature, we can easily perform batch import/export data by the web application. It is difficult in other Frameworks but easiest in laravel 8. It gives Maatwebsite/excel package to easily import/export data. In this article, we learn about, how data is exported and imported....

Database operations in PHP are a very crucial thing that is especially needed in CRUD (Create, Read, Update and Delete) operations....

Associative arrays are used to store key value pairs. For example, to store the marks of different subject of a student in an array, a numerically indexed array would not be the best choice. Instead, we could use the respective subject’s names as the keys in our associative array, and the value would be their respective marks gained....

Problem: Convert timestamp to readable date/time in PHP Solution: This can be achieved with the help of date() function, which is an inbuilt function in PHP can be used to format the timestamp given by time() function. This function returns a string formatted according to the given format string using the given integer timestamp or the current time if no timestamp is given....

To Download PDF from HTML link using PHP with the help of header() function in php. The header()function is used to send a raw HTTP header. Sometimes it wants the user to be prompted to save the data such as generated PDF....

Sometimes, need to download an image from a particular URL and use it into the project. It’s easy to go to the page and use right click button and save the image. But what if you wanted to do it programmatically? The reasons may vary person to person, developer to developer. If set of hundreds of image URLs given and somehow want to save them into the machine, or need to use this concept into the projects. Then definitely not going to download each one of those files manually....

The strtolower() function is used to convert a string into lowercase. This function takes a string as parameter and converts all the uppercase english alphabets present in the string to lowercase. All other numeric characters or special characters in the string remains unchanged....

Function overloading and overriding is the OOPs feature in PHP. In function overloading, more than one function can have same method signature but different number of arguments. But in case of function overriding, more than one functions will have same method signature and number of arguments. Function Overloading: Function overloading contains same function name and that function performs different task according to number of arguments. For example, find the area of certain shapes where radius are given then it should return area of circle if height and width are given then it should give area of rectangle and others. Like other OOP languages function overloading can not be done by native approach. In PHP function overloading is done with the help of magic function __call(). This function takes function name and arguments. Example:...

In this article, let’s see how to pass data and variables from PHP to JavaScript....

Given an integer N, The task is to find the absolute value of the given integer....

PHP doesn’t support to return multiple values in a function. Inside a function when the first return statement is executed, it will direct control back to the calling function and second return statement will never get executed. However, there are ways to work around this limitation. The multiple values can be returned from a function by using an array.Example 1: This example shows how to return multiple values from a function in PHP. First, create an empty array end push the element to the array and then return the array....

The exit() function in PHP is an inbuilt function which is used to output a message and terminate the current script. The exit() function only terminates the execution of the script. The shutdown functions and object destructors will always be executed even if exit() function is called. The message to be displayed is passed as a parameter to the exit() function and it terminates the script and displays the message. The exit() function is an alias of the die() function....