Check Database Value

1. <?PHP
   
2. 
   
3. #use: if(CheckValue($_POST['vaue']))
   
4. #returns true if the value exists
   
5. 
   
6. function CheckValue($value){
   
7.    $query = "select value from table where value = '$value'";
   
8.    $result = mysql_query($query);
   
9.    return (mysql_numrows($result) > 0);
   
10. }
    
11. 
    
12. ?>

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