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An array containing the values of the requested variables on success, or false on failure. An array value will be false if the filter fails, or null if the variable is not set.
Definition and Usage The filter_var () function filters a variable with the specified filter.
Definition and Usage The filter_var_array () function gets multiple variables and optionally filters them. This function is useful for filtering many values without calling filter_var () many times. Tip: Check the PHP Filter Reference for possible filters to use with this function.
In this tutorial, you will learn how to use the PHP filter_var() function to sanitize and validate data.
PHP provides a range of built-in functions for filtering and validating user input data. One such function is filter_var_array(), which is used to filter and
Mar 17, 2026 · Parameters value Value to filter. Note that scalar values are converted to string internally before they are filtered. filter The ID of the filter to apply. The Types of filters manual page lists the available filters. If omitted, FILTER_DEFAULT will be used, which is equivalent to FILTER_UNSAFE_RAW. This will result in no filtering taking place by default. options Associative array of options ...
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Execute filter_var_array Online. Info and examples on filter_var_array PHP Function from Data Filtering - Variable and Type Related Extensions
