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imageinterlace

(PHP 3, PHP 4, PHP 5)

imageinterlace -- Enable or disable interlace

Description

int imageinterlace ( resource image [, int interlace] )

imageinterlace() turns the interlace bit on or off.

If the interlace bit is set and the image is used as a JPEG image, the image is created as a progressive JPEG.

image: An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
interlace: If non-zero, the image will be interlaced, else the interlace bit is turned off.

Returns 1 if the interlace bit is set for the image, 0 otherwise.

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