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SQL injection in PHP search_PHP tutorial
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- 2016-07-13 10:27:28971browse
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Prevent query sql attacks => Filter keywords (code part)
---------------------@chenwei
$k = $_REQUEST['k'];
$k = addslashes($k); //Escape: single quote, double quote, backslash, NULL
$k = str_replace('%', '%', $k);
$k = str_replace('_', '_', $k);
$sql = "select * from users where name like '%$k%'";
if(!empty($k)){
$res = mysql_query($sql, $con) or die(mysql_error());
if($row = mysql_fetch_assoc($res)){
foreach($row as $k=>$v){
echo $row[$k].':'.$row[$v].'
';
}
}
}else{
echo '******';
}
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