PHP FILTER_SANITIZE_STRING Filter
 Complete PHP Filter Reference
Definition and Usage
The FILTER_SANITIZE_STRING filter strips or encodes unwanted characters.
This filter removes data that is potentially harmful for your application. It
is used to strip tags and remove or encode unwanted characters.
- Name: "string"
- ID-number: 513
Possible options and flags:
- FILTER_FLAG_NO_ENCODE_QUOTES - This flag does not encode quotes
- FILTER_FLAG_STRIP_LOW - Strip characters with ASCII value below 32
- FILTER_FLAG_STRIP_HIGH - Strip characters with ASCII value above 127
- FILTER_FLAG_ENCODE_LOW - Encode characters with ASCII value below 32
- FILTER_FLAG_ENCODE_HIGH - Encode characters with ASCII value above 127
- FILTER_FLAG_ENCODE_AMP - Encode the & character to &
Example
<?php
$var="<b>Peter Griffin<b>";
var_dump(filter_var($var, FILTER_SANITIZE_STRING));
?>
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The output of the code will be:
string(13) "Peter Griffin"
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Complete PHP Filter Reference
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