PHP FILTER_SANITIZE_SPECIAL_CHARS Filter
 Complete PHP Filter Reference
Definition and Usage
The FILTER_SANITIZE_SPECIAL_CHARS filter HTML-escapes special characters.
This filter is used to escape "<>& and characters with ASCII value below 32
- Name: "special_chars"
- ID-number: 515
Possible flags:
- FILTER_FLAG_STRIP_LOW - Strip characters with ASCII value below 32
- FILTER_FLAG_STRIP_HIGH - Strip characters with ASCII value above 32
- FILTER_FLAG_ENCODE_HIGH - Encode characters with ASCII value above 32
Example
<?php
$url="Is Peter <smart> & funny?";
var_dump(filter_var($url,FILTER_SANITIZE_SPECIAL_CHARS));
?>
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The browser output of the code above will be:
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string(37) "Is Peter <smart> & funny?"
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If you select "View source" in the browser window, you will see the following
HTML:
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string(37) "Is Peter <smart> & funny?"
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Complete PHP Filter Reference
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