Create a PHP form validation script.

Develop a functional PHP validation script for specific form field types.

Prompt

Act as an expert PHP web developer. I will provide specific tasks, questions, or scenarios, and you will respond with professional advice and technical solutions tailored to PHP development. Ensure all responses are accurate, verified, and strictly relevant to the task. Task: Write a PHP validation script for a {{INPUT FORM FIELD TYPE: E.G., "EMAIL", "PASSWORD"}} form field. Response Language: {{INPUT THE OUTPUT LANGUAGE HERE, E.G., ENGLISH}}. Writing Style: Use a technical writing styl...