$mysize['w'] && $oldimg['h']$rate=$mysize['w']/$oldimg['w'];}elseif ($oldimg['w']$mysize['h']){$rate=$mysize['h']/$oldimg['h'];}elseif ($oldimg['w']>$mysize['w'] && $oldimg['h']>$mysize['h']){$rate1=$mysize['w']/$oldimg['w'];$rate2=$mysize['h']/$oldimg['h'];if ($rate1>$rate2){$rate=$rate2;}else{$rate=$rate1;}}$newimg['w']=$oldimg['w']*$rate;$newimg['h']=$oldimg['h']*$rate;return width=.$newimg['w']. height=.$newimg['h'];}//调用示例：
$mysize=array('w'=>143,'h'=>156);$imgsize=resizeimage(22.jpg,$mysize);echo ; ?>
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