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PHP filter_var() function
Definition and usage
The filter_var() function filters the variable through the specified filter.
If successful, returns the filtered data, if failed, returns false.
SyntaxDescriptionfilter_var( Required. Specify the variable to filter.filter_var( Optional. Specify the ID of the filter to use.filter_var("someone@example....com", FILTER_VALIDATE_EMAIL)
, | Parameter |
---|---|
Description | variable |
Required. Specify the variable to filter. | filter |
Optional. Specify the ID of the filter to use. | options |
Define an array of flags/options. Check each filter's possible flags and options.
Hint and commentsHint:See alsoPHP Filter Reference Manual
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ຄວາມຫົວຂໍ້ <?phpif(!filter_var("someone@example....com", FILTER_VALIDATE_EMAIL) else ) echo("E-mail is valid"); echo("E-mail is not valid"); else { echo("E-mail is valid"); }
?>
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