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Posted by / 03-Sep-2017 05:56

Php validating numeric input

Maybe you are coming to PHP from another language and you might be thinking, “this was never an issue before so why should I care?” The reason validation is an issue is because PHP is loosely typed.

Again, this increases time spent learning a codebase and reading additional documentation instead of coding.is_numeric() is the function to use for validating numeric-only user input with PHP but unfortunately there is no is_alphanumeric(). We have already explain about form validation using javascript and j Query, but this time we will show you how to validate your form using PHP.We know this value should be an integer between 15 and 20. It’s just a quick check for a truthy value ( wasn’t set).One way of doing would be something like: being dirty because it has been validated before it has been assigned. Obviously in a real world setting you could extract the array out into a variable stored in a configuration file somewhere so things can get changed without even needing to go into business logic. Now you might be thinking that this might be useful for simple scripts that grab a couple of .

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Some people don’t roll their own, but instead opt for a third-party solution.

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