SharePoint Form Validation: client-side validation for SharePoint list field data, checking required field, regular expression and validating data range and compare.
This is a very easy-to-setup form validation script. The main idea is: you heed to write NOTHING of JavaScript code to handle whole form validation process.
ApPHP DataValidator is a simple lightweight tool useful for primary general data checks. It handles numbers, strings, emails, URLs. A range of parameters is provided for a wide variety of different verifications.
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