[英]Image file size smaller form base64 encode
There is tow image in base64 format ( $theme_image_enc
and $theme_image_enc_little
). 有base64格式的两个图像( $theme_image_enc
和$theme_image_enc_little
)。 Now I want to make the second image ( $theme_image_enc_little
) size smaller like 15kb. 现在,我想将第二个图像( $theme_image_enc_little
)的大小减小到15kb。 How can do that? 那怎么办
$image = ($_FILES["my_image"]["name"]);
$theme_image = ($_FILES["my_image"]["tmp_name"]);
$bin_string = file_get_contents("$theme_image");
$theme_image_enc = base64_encode($bin_string);
$WIDTH = 400; // The size of your new image
$HEIGHT = 300; // The size of your new image
$QUALITY = 100; //The quality of your new image
$org_w = 850;
$org_h = 660;
$theme_image_little = imagecreatefromstring(base64_decode($theme_image_enc));
$image_little = imagecreatetruecolor($WIDTH, $HEIGHT);
imagecopyresampled($image_little, $theme_image_little, 0, 0, 0, 0, $WIDTH, $HEIGHT, $org_w, $org_h);
ob_start();
imagepng($image_little);
$contents = ob_get_contents();
ob_end_clean();
echo $theme_image_enc_little = base64_encode($contents);
try to show low image size in the browser you need to reduce the quality using with imagejpeg
function 尝试在浏览器中显示低图像尺寸,需要使用imagejpeg
函数降低质量
// Take value between $quality = (0 < 100)
imagejpeg($theme_image_enc_little, NULL, $quality);
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