(PHP 4, PHP 5)
imageinterlace — Enable or disable 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.
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
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.
Example #1 Turn on interlancing using imageinterlace()
<?php// Create an image instance$im = imagecreatefrom('php.gif');// Enable interlancingimageinterlace($im, true);// Save the interfaced imageimagegif($im, './php_interlaced.gif');imagedestroy($im);?>
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