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PHP Form Validation. Think SECURITY when processing PHP forms! These pages will show how to process PHP forms with security in mind. Proper validation of form data is important to protect your form from hackers and spammers!
Click inside drop area or drag & drop your file. Wait until PHP to PDF file is uploaded. Select output format from dropdown menu. Click on Convert button to start PHP to PDF conversion. Download or share resulted file.
PHP provides several built-in functions for form validation, including: filter_var() - Validates variables with filters. is_numeric() - Checks if a value is a number. is_string() - Checks if a value is a string. trim() - Removes whitespace from the beginning and end of a string.
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One way you can consider is using an online API that converts any HTML to PDF. You can send them a generated HTML (easier to produce) that will contains your user's submitted data, and receive back a high fidelity PDF.
PHP can validate form input server side, submitted by the user using HTML forms. You need to check a few things: Numbers only. Empty values. Input length. Strip HTML tags. Email address.
Convert PHP to PDF easily — get your file transformed and ready for processing right after uploading it to our online converter.
