PHP FILTER_SANITIZE_STRING Filter

PHP Filter Reference : Remove all HTML tags from a string

Definition and Usage

The FILTER_SANITIZE_STRING filter removes tags and remove or encode special characters from a string.

Possible options and flags:

FILTER_FLAG_NO_ENCODE_QUOTES - Do not encode quotes

FILTER_FLAG_STRIP_LOW - Remove characters with ASCII value < 32

FILTER_FLAG_STRIP_HIGH - Remove characters with ASCII value > 127

FILTER_FLAG_ENCODE_LOW - Encode characters with ASCII value < 32

FILTER_FLAG_ENCODE_HIGH - Encode characters with ASCII value > 127

FILTER_FLAG_ENCODE_AMP - Encode the "&" character to &

Remove all HTML tags and all characters with ASCII value > 127, from a string:

<?php
$str = "<h1>Hello WorldÆØÅ!</h1>";

$newstr = filter_var($str, FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_HIGH);
echo $newstr;
?>

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