Posted By

paulgrenwood on 09/30/09

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php
forms

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Last Edited at 09/30/09 08:54am

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Cleaning Variables

/ Published in: PHP

Variables that are submitted via web forms always need to be cleaned/sanitized before use in any way, to prevent against all kinds of different malicious intent.

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function clean($value) { 
// If magic quotes not turned on add slashes. 
if(!get_magic_quotes_gpc()) 
 
// Adds the slashes. 
{ $value = addslashes($value); } 
 
// Strip any tags from the value. 
$value = strip_tags($value); 
 
// Return the value out of the function. 
return $value; 
}
 
$sample = "<a href='#'>test</a>";
$sample = clean($sample);
echo $sample;