二款php 圖片等比例縮放

代碼如下

複製代碼

<?php header("content-type:image/jpeg"); $filename = hsdir.'/mljntc2p.jpg'; $im = imagecreatefromjpeg($filename); $h=imagesy($im);//獲得靶心圖表片高度 $new_img_width  = 257; $new_img_height = 522; $newim = imagecreate($new_img_width, $new_img_height); $white = imagecolorallocate($newim, 255,255,255); //設定背景顏色 imagecopyresized($newim, $im, 0, 0, 0, 0, $new_img_width, $new_img_height, $new_img_width, $new_img_height); imagefilledrectangle($newim,0,$h,$new_img_width,$new_img_height,$white); //填充  靶心圖表片高度作為起駛y座標 以指定截取寬高為結束座標 imagejpeg($newim); imagedestroy($newim); imagedestroy($im); ?>

代碼二

代碼如下

複製代碼

<?php header("content-type:image/jpeg"); $filename = 'myface.jpg'; $im = imagecreatefromjpeg($filename); $new_img_width  = 80; $new_img_height = 150; $newim = imagecreate($new_img_width, $new_img_height); $white = imagecolorallocate($newim, 255,255,255); //設定背景顏色 imagecopyresized($newim, $im, 0, 0, 0, 0, $new_img_width, $new_img_height, $new_img_width, $new_img_height); imagejpeg($newim); imagedestroy($newim); imagedestroy($im); ?>