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Why do I use imagecopy to display the pattern is grayscale?

Source: Internet
Author: User
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I use the imagecopy of the GD library to copy a color picture to another blank image, but the effect is grayscale, no color. Excuse me, what's going on here?

The picture here is obtained by means of a URL. So the suspicion is that URL opening is slow to cause.

Reply content:

I use the imagecopy of the GD library to copy a color picture to another blank image, but the effect is grayscale, no color. Excuse me, what's going on here?

The picture here is obtained by means of a URL. So the suspicion is that URL opening is slow to cause.

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