Php code for validating a form

While Validating an HTML form the client side validation is not only enough.

This field is mandatory.’ will be displayed, as shown in the screenshot below.

You can check whether an email address is valid or not using the ‘‘ function also allows you to check if a web URL is valid.

‘ function checks if the pattern specified in the regular expression exists in the second argument value, which is a string value.

So in the code example below, this function checks if the specified pattern exists in the name.

The following code example lets you make a text field a required field.

The error message is stored in the variable ‘ If the user does not enter any value in the text field, the error message ‘Please enter your address.

Josh also teaches full-stack web development at the UCI Coding Bootcamp.

When Josh isn’t building websites, he’s building websites.

As web developers, we want to protect the information filled out in form fields.

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