PHP AdvancedLesson 39Free preview

PHP Filters Advanced

This lesson is part of PHP · All levels

Summary

An advanced version of PHP Filter allows direct data checking of requests such as $_GET, $_POST, or $_COOKIE via filter_input(). In addition, a variety of custom sanitary filters are available for e-mail, URLs, and strings. This lesson also discusses optional flags to regulate filter behavior.

Key points

Read and filter the input request values based on the name
Processing multiple fields at once
The filters and urls clear the unlicensed characters.
Flags such as FILTER_FLAG_STRIP_LOW set additional filter behavior

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