裁剪上传图片下侧，去掉头条水印 - WordPress 教程

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//裁剪上传图片下侧，去掉头条水印
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function cropUploadImage($upload){
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 $src_path = $upload['file'];
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 $src = imagecreatefromstring(file_get_contents($src_path));
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 $x = 0;
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 $y = 0;
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 $width = imagesx( $src );
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 $height = imagesy( $src )-55;
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 $final_width = $width;
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 $final_height = round($final_width * $height / $width);
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 $new_image = imagecreatetruecolor($final_width, $final_height);
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imagecopyresampled($new_image, $src, 0, 0, $x, $y, $final_width, $final_height, $width, $height);
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 header('Content-Type: image/jpeg');
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 imagejpeg($new_image,$src_path);
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 imagedestroy($src);
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 imagedestroy($new_image);
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 return $upload;
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}
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add_filter( 'wp_handle_upload', 'cropUploadImage',2 );