03-Apr-2023
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Admin
Hi guys,
Today i will explained How To Use PHP Advanced Filters. This example is so easy to use in php. The Advanced filtered is a provided to the php in by default.
I am explained to the advance filter function in php Validate an Integer Within a Range,Validate IPv6 Address,Validate URL - Must Contain QueryString,Remove Characters With ASCII Value > 127 to explained.
So let's start to the example.
Validate an Integer Within a Range
This example uses the filter_var() function to check if a variable is both of type INT, and between 1 and 200
<?php
$int = 122;
$min = 1;
$max = 200;
if (filter_var($int, FILTER_VALIDATE_INT, array("options" => array("min_range"=>$min, "max_range"=>$max))) === false) {
echo("Variable value is not within the legal range");
} else {
echo("Variable value is within the legal range");
}
?>
Output
Variable value is within the legal range
Validate IPv6 Address
This example uses the filter_var() function to check if the variable $ip is a valid IPv6 address.
<?php
$ip = "2001:0db8:85a3:08d3:1319:8a2e:0370:7334";
if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false) {
echo("$ip is a valid IPv6 address");
} else {
echo("$ip is not a valid IPv6 address");
}
?>
Output
2001:0db8:85a3:08d3:1319:8a2e:0370:7334 is a valid IPv6 address
Validate URL - Must Contain QueryString
This example uses the filter_var() function to check if the variable $url is a URL with a querystring
<?php
$url = "https://www.nicesnippets.com";
if (!filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_QUERY_REQUIRED) === false) {
echo("$url is a valid URL with a query string");
} else {
echo("$url is not a valid URL with a query string");
}
?>
Output
https://www.nicesnippets.com is not a valid URL with a query string
Remove Characters With ASCII Value > 127
This example uses the filter_var() function to sanitize a string. It will both remove all HTML tags, and all characters with ASCII value > 127, from the string
<?php
$str = "<h1>Hello WorldÆØÅ!</h1>";
$newstr = filter_var($str, FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_HIGH);
echo $newstr;
?>
Output
Hello World!
Now you can check your own.
I hope it can help you...
#PHP 8
#PHP