php - imagepng, set quality without writing to file, how? -


i want export png memory:

imagepng ($img, ?, 9);

i want compress, need set filename too. dont want it, how then?

you this:

<?php ob_start(); imagepng($img, null, 9, png_all_filters); $image_data = ob_get_contents(); ob_end_clean();

from manual:

filename: path save file to. if not set or null, raw image stream outputted directly.


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