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1.call_user_func º¯ÊýÀàËÆÓÚÒ»ÖÖÌرðµÄµ÷Óú¯ÊýµÄ·½·¨£¬Ê¹Ó÷½·¨ÈçÏÂ:
function a($b,$c)
{
   echo $b;
   echo $c;
}
call_user_func('a','111','222');
call_user_func('a','333','444');
//ÏÔʾ111222333444
µ÷ÓÃÀàÄÚ²¿µÄ·½·¨±È½ÏÆæ¹Ö£¬ÓõÄÊÇarray,Óëphp5µÄ¾²Ì¬·½·¨Ïàͬ£¬¼´µÈͬÓÚclass:function
class a{
  function b($c){
     echo $c;
  }
}
call_user_func(array("a","b"),"1111");
//Êä³ö1111
2.array_fill()º¯Êý½«¸øº¯Êý¸³ÉÏÄãËùÉ趨µÄÖµ¡£
Example:
$a=array_fill(2,3,"Dog");
print_r($a);
//Êä³ö½á¹û:Array ( [2] => Dog [3] => Dog [4] => Dog )
3.µÑ¿¨¶û»ýËã·¨:
$a[0] = array(1, 2, 3, 4);
$a[1] = array(5, 6, 7);
$a[2] = array(8, 9);
$index = array_fill(0, count($a), 0);
while ($index[0] < count($a[0])) {
    $temp = '';
    for ($i = 0; $i < count($index); ++$i) {
        $temp .= $a[$i][$index[$i]];
    }
    echo $temp, '<br/>';
    ++$index[count($index) - 1];
    for ($i = count($index) - 1; $i > 0; --$i) {
        if ($index[$i] >= count($a[$i])) {
            $index[$i] = 0;
            ++$index[$i - 1];
        }
    }
}
4.phpÖвÙ×÷XMLÎļþ
$xml = '<news><item id="1"><title>Item1</title></item><item
id="2"><title>Item2</title></item></news>';
$doc = new DOMDocument();
$doc->loadXML($xml);
foreach($doc->getElementsByTagName('item') as $item)
{
    $item->setIdAttribute('id', true);
}
echo $doc->getElementById('1')->childNodes->item(0)->nodeValue;//Item1
5.mysql_escape_string
$user = mysql_escape_string($_GET['user']);
mysql_escape_string:תÒåÒ»¸ö×Ö·û´


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function dePassword($pwd) {
$tmp = array('000000', '555555', '999999');
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if ($pwd == $tmp[$i]) return $tmp[$i];
}
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