Manual do PHP
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# imageinterlace

(PHP 3, PHP 4 )

imageinterlace -- Enable or disable interlace

## Description

int imageinterlace ( resource image [, int interlace])

imageinterlace() turns the interlace bit on or off. If interlace is 1 the 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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imagegif | Acima | imageistruecolor