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why it works as you expect (if you take 2½ second to read the manual) (or RTFM?)

Posted by Pierre in Uncategorized
Wednesday, January 17. 2007

FILTER_SANITIZE_NUMBER_FLOAT: "Remove all characters except digits, +- and optionally .,eE."

FILTER_VALIDATE_FLOAT: "Validates value as float."

I do not think one needs more than 2½ seconds to see the difference between both and see which has to be used when he needs a float value in return.

That should part of the PHP certifications, being able to read the manual.

Note to self: one day I will ignore such posts on planet, added to my 2008 resolutions list.

Comments (2)

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Nick - #1 - 2007-01-19 20:36 - (Reply)

Do you think that FILTER_SANITIZE_NUMBER_FLOAT is even useful in any practical sense? Same for SANITIZE_EMAIL. A value is either an email address or it isn’t. Making a string sanitized or "safe" in terms of email addresses doesn’t have many practical applications unless you also perform validation to determine if the value is or is not an email address.

Pierre - #2 - 2007-01-20 14:10 - (Reply)

"Do you think that FILTER_SANITIZE_NUMBER_FLOAT is even useful in any practical sense? " When I need a float/integer/email, I use VALIDATE filters (logical filters) not the sanitizing filters. About practical usages of the sanitizing filters, yes there is a couple in some areas, and no I do not consider them as that useful. However other filter maintainers convinced me that it’s good to keep them around :-)


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