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  1. How to get the pixel height of a character in the specified font using the imagefontheight() function in PHP?

  2. How to get the pixel width of a character in the specified font using the imagefontwidth() function in PHP?

  3. How to get the clipping rectangle using imagegetclip() function in PHP?

  4. How to ensure an image is a truecolor image using the imageistruecolor() function in PHP?

  5. How to set the alpha blending flag to use layering effects using imaglayereffect() function in PHP?

  6. How to draw a line using imageline() function in PHP?

  7. How to draw an open polygon using the imageopenpolygon() function n PHP?

  8. How to copy the palette from one image to another using imagepalettecopy() function in PHP?

  9. How to get or set the resolution of an image using imageresolution() function in PHP?

  10. How to rotate an image with a given angle using imagerotate() function in PHP?

  11. How to set the style for line drawing using imagesetstyle() function in PHP?

  12. How to set the tile image for filling using imagesettile() function in PHP?

  13. How to draw a text string image horizontally by using imagestring() function in PHP?

  14. How to draw a string vertically using imagestringup() function in PHP?

  15. How to set the image thickness for line drawing using imgesetthickness() function in PHP?

  16. How to set a single pixel using imagesetpixel() function in PHP?

  17. How to enable or disable interlace using imageinterlace() function in PHP?

  18. How to apply a gamma correction to a Graphics Draw (GD) image in PHP?

  19. How to apply a 3×3 convolution matrix using imageconvolution() in PHP?

  20. How to check antialias functions be used or not by using imageantialias() function in PHP?
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