Question

<?php

$targ_w = $_POST['targ_w'];
$targ_h = $_POST['targ_h'];
$jpeg_quality = 90;
$src = $_POST['photo_url'];

// create new jpeg image based on the target sizes
$img_r = imagecreatefromjpeg($src);
$dst_r = ImageCreateTrueColor( $targ_w, $targ_h );

imagecopyresampled($dst_r,$img_r,0,0,$_POST['x'],$_POST['y'], $targ_w,$targ_h,$_POST['w'],$_POST['h']);
imagejpeg($dst_r,$src,$jpeg_quality);

// display the  photo - "?time()" to force refresh by the browser
echo '<img src="'.$src.'?'.time().'">';

exit;
?>

我正在编写用于图像裁剪的代码，并使用上述代码保存了裁剪后的图像。我可以使用imagecreatefromjpeg裁剪和保存jpg文件，也可以将功能更改为imagecreatefrompng。我可以裁剪png文件，请一次使用此代码帮助我验证或保存多种类型的图像谢谢！

Answer 1

$src = $_POST['photo_url'];

$what = getimagesize($src);
switch(strtolower($what['mime']))
{
    case 'image/png':
        $img_r = imagecreatefrompng($src);
        $source_image = imagecreatefrompng($src);
        $type = '.png';
        break;
    case 'image/jpeg':
        $img_r = imagecreatefromjpeg($src);
        $source_image = imagecreatefromjpeg($src);
        error_log("jpg");
        $type = '.jpeg';
        break;
    case 'image/gif':
        $img_r = imagecreatefromgif($src);
        $source_image = imagecreatefromgif($src);
        $type = '.gif';
        break;
    default: die('image type not supported');
}

谢谢您，这是有效的任何类型图像的必需代码

使用图像功能创建多种类型的图像

1 个答案: