php图片等比例缩放函数
源代码如下:
<p><?php</p>$filename="q.jpg";<br />$per=0.3;<br />list($width, $height)=getimagesize($filename);<br />$n_w=$width*$per;<br />$n_h=$height*$per;<br />$new=imagecreatetruecolor($n_w, $n_h);<br />$img=imagecreatefromjpeg($filename);<br />//拷贝部分图像并调整<br />imagecopyresized($new, $img,0, 0,0, 0,$n_w, $n_h, $width, $height);<br />//图像输出新图片、另存为<br />imagejpeg($new, "q1.jpg");<br />imagedestroy($new);<br />imagedestroy($img);<br /><p>?></p>
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