Baria php

The PHP File Open method and modes will be covered in this chapter. PHP File Open – fopen() The fopen() function is a better way to open files. In comparison to readfile(), this function provides more options. Syntax: Parameters of fopen(): In PHP, the fopen() method takes four parameters. Parameter Data Type Description $file  Parameter … Read more

The PHP File Read and close methods will be covered in this chapter. PHP Read File – fread() The fread() method reads data from a file that is currently open. The first parameter of fread() indicates the filename to read from, while the second defines the maximum number of bytes to read. The fread() function … Read more

The PHP File Create/Write methods will be covered in this chapter. PHP Create File – fopen() A file can also be created using the fopen() method. Perhaps puzzlingly, in PHP, a file is created using the same function that opens files. If a file with the same name already exists, fopen() will open it; otherwise, … Read more

We’ll learn about the PHP file upload process in this chapter. With just a few lines of code, PHP allows you to upload single or many files. Configure The “php.ini” File First, make sure PHP is set up to accept file uploads. Look for the file uploads directive in your “php.ini” file and turn it on. … Read more

This chapter explains how to make input fields required and, if necessary, provide error messages. PHP Form Required Fields Let’s look at a PHP for fields, some of which cannot be left blank and must be filled out: Field Validation Rules Name Required+ It can only contain letters and whitespaces. E-mail Required. + Must contain a … Read more

The validation of form fields is demonstrated in this chapter. Let’s have a look at the form fields we’ll be creating. Field Validation Rules Name Must only contain letters and whitespace E-mail Must contain a valid email address (with @ and .) Website It must contain a valid URL We discussed required fields and errors … Read more

PHP Form Validation is the process of verifying the user’s input. In PHP, there are two forms of validation. The following is a list of them: Client-Side Validation: It is used for field validation and is performed on client machine web browsers. Server-Side Validation: After form submission, data is forwarded to a server, which performs validation checks. … Read more

Php Complete form example will be shown in this chapter: Let’s look at how to maintain input field data saved even after the form has been submitted. PHP Complete Form-Keep field value We add a small PHP script inside the value attribute of the following input fields: name, email, and website, to show the values … Read more

As we have discussed PHP Global variables. Some PHP variables are “superglobals,” which means they are always reachable, irrespective of scope, and can be accessed from any function, class, or file without doing anything special. PHP Superglobal Variables The superglobals can be found all across your script. These variables can be accessed from any function, … Read more