(PHP 3 <= 3.0.18, PHP 4 >= 4.0.0)
ImageInterlace -- Enable or disable interlace
Description
int imageinterlace (int im [, int interlace])
ImageInterlace() turns the interlace bit on or off. If interlace is 1 the im image
will be interlaced, and if interlace is 0 the interlace bit is turned off.
If the interlace bit is set and the image is used as a JPEG image, the image is created as
a progressive JPEG.
This function returns whether the interlace bit is set for the image.
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