How can I validate a name in PHP?

Posted on By Aman Kelley

How can I validate a name in PHP?

PHP validates the data at the server-side, which is submitted by HTML form….Validate String

  1. $name = $_POST [“Name”];
  2. if (! preg_match (“/^[a-zA-z]*$/”, $name) ) {
  3. $ErrMsg = “Only alphabets and whitespace are allowed.”;
  4. echo $ErrMsg;
  5. } else {
  6. echo $name;
  7. }

How do I validate my first name?

For the first name, it should only contain letters, can be several words with spaces, and has a minimum of three characters, but a maximum at top 30 characters. An empty string shouldn’t be validated (e.g. Jason, jason, jason smith, jason smith, JASON, Jason smith, jason Smith, and jason SMITH).

What is meant by validation in PHP?

Validation in PHP is the process where we check if the input information in the various fields in any form such as text, checkbox or radio button, etc, submitted by the end-user in the form is correct or not using HTML code.

How many types of validation are there in PHP?

There are two types of validations: client-side & server-side: The client-side validation is performed in the web browsers of the users. To validate data at the client side, you can use HTML5 validation or JavaScript.

How validate URL in PHP?

PHP FILTER_VALIDATE_URL Filter

  1. Example. Check if the variable $url is a valid URL: $url = “https://www.w3schools.com”;
  2. Example 1. First remove all illegal characters from the $url variable, then check if it is a valid URL:
  3. Example 2. Here, the URL is required to have a query string to be valid:

How many types of validation are there in PHP MCQS?

Explanation: There are seven validation filters. They are FILTER_VALIDATE_EMAIL, FILTER_VALIDATE_BOOLEAN, FILTER_VALIDATE_FLOAT, FILTER_VALIDATE_INT, FILTER_VALIDATE_IP, FILTER_VALIDATE_REGEXP, FILTER_VALIDATE_URL.

How do you write a validation rule?

Create a field validation rule

  1. Select the field that you want to validate.
  2. On the Fields tab, in the Field Validation group, click Validation, and then click Field Validation Rule.
  3. Use the Expression Builder to create the rule.

How do you validate a name field in HTML?

The validation process evaluates whether the input value is in the correct format before submitting it. For example, if we have an input field for an email address, the value must certainly contain a valid email address; it should start with a letter or a number, followed by the @ symbol, then end with a domain name.

What is validation example?

Validation is an automatic computer check to ensure that the data entered is sensible and reasonable. It does not check the accuracy of data. For example, a secondary school student is likely to be aged between 11 and 16. For example, a student’s age might be 14, but if 11 is entered it will be valid but incorrect.

How validate textbox in PHP?

Assume we have the following form in a page named “test_form.php”: “>…Your Input:

Field Validation Rules
Website Optional. If present, it must contain a valid URL
Comment Optional. Multi-line input field (textarea)
Gender Required. Must select one

What is the full form of PHP?

PHP originally stood for Personal Home Page, but it now stands for the recursive initialism PHP: Hypertext Preprocessor. PHP code is usually processed on a web server by a PHP interpreter implemented as a module, a daemon or as a Common Gateway Interface (CGI) executable.

How do you validate a URL?

url class to validate a URL is discussed in the previous post. Here the idea is to use Regular Expression to validate a URL….

  1. The URL must start with either http or https and.
  2. then it must contain www. and.
  3. then followed by subdomain of length (2, 256) and.
  4. last part contains top level domain like .com, . org etc.

How to validate full name format in PHP?

The Regular Expression (REGEX) is the easiest way to validate full name format in PHP. You can easily validate first and last name using regular expression in PHP.

What is valvalidation in PHP?

Validation means check the input submitted by the user. There are two types of validation are available in PHP. They are as follows −. Client-Side Validation − Validation is performed on the client machine web browsers. Server Side Validation − After submitted by data, The data has sent to a server and perform validation checks in server machine.

What are the validation rules for an HTML form?

The HTML form we will be working at in these chapters, contains various input fields: required and optional text fields, radio buttons, and a submit button: The validation rules for the form above are as follows: Required. + Must contain a valid email address (with @ and .)

What is the difference between required field and validation in PHP?

Required field will check whether the field is filled or not in the proper way. Most of cases we will use the * symbol for required field. Validation means check the input submitted by the user. There are two types of validation are available in PHP.

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