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Snippet Name: Filter non-alphanumeric characters

Description: Filters out all non-alphanumeric characters (a through z and 0 through 9). Useful for filtering or sanitizing input data.

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» String Functions: LENGTH
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» String Functions: CONCAT
» String Functions: CHAR
» String Functions: INITCAP
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» String Functions: UPPER
» Sort comma separated string
» Censor Message Text
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» Finding a substring in a string

Comment: (none)

Language: PHP
Highlight Mode: PHP
Last Modified: March 16th, 2009

<?PHP
 
//Begin filtering variable  $data of non alphanumeric characters
 
$data = PREG_REPLACE("/[^0-9a-zA-Z]/i", '', $data);
 
//Finish filtering of non alphanumeric characters
 
?>


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