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PHP ÅжÏÊÇ·ñµÍË×ͼƬ==ÊÇ·ñ@É«@Çé@ͼ@Ƭ

if(validatorImage("d:\b.jpg"))
echo 'ÊǸöµÍË×ͼƬ<br />';
else
echo '²»ÊǵÍË×ͼƬ<br />';
function validatorImage($fileName){
$image = getImage($fileName);
$width = ImagesX($image);
$height = ImagesY($image);
$ycb = 0;
for($y=0;$y<$height;$y++){
for($x=0;$x<$width;$x++){
$rgb = ImageColorAt($image,$x,$y);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
$ycbcr = rgb2ycbcr($r,$g,$b);
if((86<=$ycbcr['cb']&&$ycbcr['cb']<=117)&&(140<=$ycbcr['cr']&&$ycbcr['cr']< 168)){
$ycb++;
}
}
}
imagedestroy($image);

if($ycb>(floatval($width)*floatval($height)*0.3))
return true;
else
return false;
}
function getImage($fileName){
$info = getImageSize($fileName);
$ext = null;
switch ($info[2]) {
case 1 :
$ext = "gif";
break;
case 2 :
$ext = "jpeg";
break;
case 3 :
$ext = "png";
break;
}
$function = 'ImageCreatefrom'.ucfirst($ext);
$resource = $function($fileName);
return $resource;
}
// RGB ת YCbCrÉ«²Ê
function rgb2ycbcr($r,$g,$b){
$r = floatval($r);
$g = floatval($g);
$b = floatval($b);

$y = 0.299*$r + 0.587*$g + 0.114*$b;
$cb = (1 / 1.772) * ($b - $y) + 128;
$cr = (1 / 1.402) * ($r - $y) + 128;

return array('y'=>$y,'cb'=>$cb,'cr'=>$cr);
}

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ÉÏÃæÊÇͨ¹ý RGBÉ«²ÊÄ£ÐÍ  ×ª³É YCbCrÉ«²ÊÄ£ÐÍ ÔÚ YCbCrÉ«²ÊÄ£ÐÍ ÅжϵÍË×É«µÄÕ¼±È£¬Èç¹ûÉÌÓû¹Òª¼ÓÉϼ¡·ôÉ«µÄ¹ýÂ˼°¶ÔµÍËײ¿Î»µÄÅжϣ¬ÒÀ¾Ý±ÈÀý¶ÔͼƬ½øÐзÖÀà¡£
YCbCr Ïà¹ØÖªÊ¶£¬¿ÉÒԲο¼http://zh.wikipedia.org/wiki/YCbCr
RGB ת³É YCbCr ¹«Ê½¿ÉÒԲο¼http://blog.csdn.net/zyl910/archive/2006/05/29/759535.aspx


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PHP µÄÒýÓñäÁ¿ÎÊÌâ

$xml = '../data/news.xml' ;
$qp = qp($xml, 'news_root')->children();
$arrData = array() ;
$i = 0 ;
foreach( $qp as $child )
{
print_r( $arrData );
echo "<br/>hi<br/>";
unset($arrSub);
$arrSub = array() ;
array_push( $arrData , &$arrSub );
print_r( $arrData ......

PHPÈ¥³ý×¢ÊÍÀà

<?php
include_once("error.php");
/*
 * Ãû³Æ : PHPÈ¥Ô´Âë×¢Êͼ°Çá¶ÈѹËõÊý¾Ý
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 * °æ±¾ : v 2010/02/25 v 1.0
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 * ʾÀý £º
 * ʵÀý => $data = new REMOVE_COMMENT($file_p ......

Taoapi PHP SDK ÒѾ­Éý¼¶µ½2.2 Ö§³ÖUTF 8 GB2312±àÂë

´Ó2.2Æð SDK ½«È«ÃæÖ§³ÖUTF-8 GB2312 µÈ¶àÖÖ¸ñʽ,Ò»Ì×SDK ¾Í¿ÉÒÔ×ÔÊÊÓ¦ÄúËùÐèÒªµÄ±àÂë,
ÄÚ´øÅäÖÃÎļþ Taoapi_Config.inc.php
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2010-02-25 Ôö¼ÓÁ˱àÂë¸ñʽ×ÔÊÊÓ¦¹¦ÄÜ
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2010-02-25 Ôö¼ÓAPIµ÷Óó¬¹ýÏÞÖÆÊ±×Ô¶¯Çл»µ ......

PHP»ñÈ¡ºº×ÖÆ´ÒôÊ××Öĸ

<FORM METHOD=POST ACTION="#">
<INPUT TYPE="text" NAME="name">
<INPUT TYPE="submit" value="query" name="sub">
</FORM>
<?php
function getinitial($str)
{
$asc=ord(substr($str,0,1)); //ord()»ñÈ¡ASCII
if ($asc<160) //·ÇÖÐÎÄ
{
if ($asc>=48 ......
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