imagepng

(PHP 4, PHP 5, PHP 7)

imagepng — 锟斤拷 PNG 锟斤拷式锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥硷拷

说锟斤拷

imagepng ( resource $image [, string $filename ] ) : bool

imagepng() 锟斤拷 GD 图锟斤拷锟斤拷锟斤拷image锟斤拷锟斤拷 PNG 锟斤拷式锟斤拷锟斤拷锟斤拷锟阶硷拷锟斤拷锟斤拷通锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 filename 锟斤拷锟斤拷锟斤拷锟侥硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷募锟斤拷锟�

<?php
$im = imagecreatefrompng("test.png");
imagepng($im);
?>

锟轿硷拷 imagegif()锟斤拷imagewbmp()锟斤拷imagejpeg() 锟斤拷 imagetypes()锟斤拷