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PHP Form Validation Techniques

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Questions and Answers

What is the purpose of Presence Validation in PHP?

To check if a field or variable is not empty (correct)

To check if a value is within a certain range

To validate uniqueness of a value

To check if a value is numeric

What does String Length Validation in PHP aim to verify?

If a value is within a certain range (correct)

If a value is a number

If a value is in a specific set

If a value is unique

Which PHP validation type verifies if a value is a number, string, or another type?

Presence Validation

Uniqueness Validation

Inclusion in set Validation

Type Validation (correct)

What does Inclusion in Set Validation in PHP validate?

If a value is in a specific set Signup and view all the answers

What is the purpose of Uniqueness Validation in PHP?

To check if a value is unique Signup and view all the answers

Which PHP validation type is used to verify if a value matches a specific format using regular expressions?

Format Validation Signup and view all the answers

What message will be displayed if a user enters characters other than 0-9 in the 'Age' field?

Please enter numbers only for Age Signup and view all the answers

Which validation rule specifies that 'Username already exist!' should be displayed?

Username already exist! Signup and view all the answers

If a user enters characters other than a-z or A-Z in the 'LastName' field, what message will be displayed?

Last Name can contain only characters! Signup and view all the answers

What is the error message for entering an invalid email format?

Invalid email format Signup and view all the answers

If a user enters a website without http/s, ftp, www, or domain name, which message will be displayed?

Invalid URL! Signup and view all the answers

What message will be shown if a password of 6 characters or less is entered?

'Password must be above 6 characters!' message Signup and view all the answers