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重载图像的比例
原标题:Resize uploaded image to proportion

当时,我一直在建造一个图像上加载站,但其中一部分被 st。 在第二页,上载一旦完成,即展示了你预期的各种链接。 然而。 我要在网页上添加一个umb子,甚至一个更大的画面,但是它必须是一种 w。 我曾多次试图写几本文字,以考虑到问题,并将一些数学应用于其中,但徒劳无益。

我真的喜欢有人有文字或想法来做上述工作。 重载的所有图像尺寸不同,一是希望50x50图像被炸多达250x250。

<?php
function imgResize($width, $height, $target) {

     if ($width > $height) {
     $percentage = ($target / $width);
     } else {
     $percentage = ($target / $height);
     }


     $width = round($width * $percentage);
     $height = round($height * $percentage);
     return "width="$width" height="$height"";

     }

     ?>

Thanks, Harry

最佳回答

简单数:

$original_width = 50;
$original_height = 50;
$width = 250;
$ratio = $width/$original_width;

$height = $original_height * $ratio;
问题回答

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