下面的功能会在图像上嵌入水印。在某些服务器中,它非常慢,而我在服务器中从未遇到过相同的问题。它可能有什么问题?我没有想法。
function add_watermark( $source_file_path, $output_file_path, $watermark_file_path, $quality = 80 ) {
list( $source_width, $source_height, $source_type ) = getimagesize( $source_file_path );
if ( $source_type === NULL ) {
return false;
}
switch ( $source_type ) {
case IMAGETYPE_GIF:
$source_gd_image = imagecreatefromgif( $source_file_path );
break;
case IMAGETYPE_JPEG:
$source_gd_image = imagecreatefromjpeg( $source_file_path );
break;
case IMAGETYPE_PNG:
$source_gd_image = imagecreatefrompng( $source_file_path );
break;
default:
return false;
}
$overlay_gd_image = imagecreatefrompng( $watermark_file_path );
$overlay_width = imagesx( $overlay_gd_image );
$overlay_height = imagesy( $overlay_gd_image );
imagecopy(
$source_gd_image,
$overlay_gd_image,
$source_width - $overlay_width - 10,
$source_height - $overlay_height - 10,
0,
0,
$overlay_width,
$overlay_height
);
imagejpeg( $source_gd_image, $output_file_path, $quality );
imagedestroy( $source_gd_image );
imagedestroy( $overlay_gd_image );
}
我不确定它是否与php.ini配置有关,但这里是所有服务器中使用的配置:
memory_limit = 100M
upload_max_filesize = 192M
post_max_size = 100M
file_uploads = On
allow_url_fopen = On