图片缩放（不裁剪，按原来比例计算宽高）
242 / 2 / 创建于 3年前
chowjiawei 的个人博客
//比例计算图片宽高
public function calculateDimensions($width, $height, $maxWidth, $maxHeight)
{
if ($width != $height) {
if ($width > $height) {
$tWidth = $maxWidth;
$tHeight = (($tWidth * $height)/$width);
//fix height
if ($tHeight > $maxHeight) {
$tHeight = $maxHeight;
$tWidth = (($width * $tHeight)/$height);
}
} else {
$tHeight = $maxHeight;
$tWidth = (($width * $tHeight)/$height);
//fix width
if ($tWidth > $maxWidth) {
$tWidth = $maxWidth;
$tHeight = (($tWidth * $height)/$width);
}
} } else {
$tWidth = $tHeight = min($maxHeight, $maxWidth);
}
return array('height'=>(int)$tHeight,'width'=>(int)$tWidth);
}本作品采用《CC 协议》，转载必须注明作者和本文链接
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