Parse the common image function set of PHP

Gd_info function: Get information about the currently installed GD library
getimagesize function: Get the size of the image
Image_type_to_extension function: Gets the file suffix of the image type
Image_type_to_mime_type function: Determine the MIME type of a ImageType constant
image2wbmp function: Output an image to a browser or file in wbmp format
imagealphablending function: Set the color-blending mode of the image
Imageantialias function: Whether to use AntiAlias (anti-aliasing) function
Imagearc function: Drawing an elliptical arc
Imagechar function: Draw a character horizontally
Imagecharup function: To draw a character vertically
imagecolorallocate function: Assigning colors to an image
Imagecolorallocatealpha function: Assigns a color to an image +alpha
Imagecolorat function: Gets the color index value of a pixel
Imagecolorclosest function: Gets the index value of the color closest to the specified color
Imagecolorclosestalpha function: Gets the index value of the color closest to the specified color and transparency
IMAGECOLORCLOSESTHWB function: Gets the black-white index of the chroma closest to the specified color
Imagecolordeallocate function: Canceling the allocation of image colors
Imagecolorexact function: Gets the index value of the specified color
Imagecolorexactalpha function: Gets the index value of the specified color plus transparency
Imagecolormatch function: Make color palette version in one image more compatible with true Color version
Imagecolorresolve function: Gets the index value of the specified color or the nearest alternative value that is likely to be obtained
Imagecolorresolvealpha function: Gets the index value of the specified color transparency or the nearest alternative value that is likely to be obtained
Imagecolorset function: Set color for the specified palette index
Imagecolorsforindex function: Gets the color of an index
Imagecolorstotal function: Gets the number of colors in the palette of an image
Imagecolortransparent function: Defines a color as a transparent color
imageconvolution function: Request a 3*3 convolution matrix
imagecopy function: Copy part of an image
Imagecopymerge function: Copy and merge part of an image
Imagecopymergegray function: Copy and merge part of an image with grayscale
imagecopyresampled function: resample copy part of image and resize
imagecopyresized function: Copy part of the image and resize it
Imagecreate function: Create a new palette-based image

IMAGECREATEFROMGD2 function: Create a new image from the GD 2 file or URL
Imagecreatefromgd2part function: Create a new image from a given GD 2 file or part of a URL
IMAGECREATEFROMGD function: Create a new image from the GD file or URL
Imagecreatefromgif function: Create a new image from a GIF file or URL
Imagecreatefromjpeg function: Create a new image from a JPEG file or URL
Imagecreatefrompng function: Create a new image from a PNG file or URL
imagecreatefromstring function: Create a new image from an image stream in a string
Imagecreatefromwbmp function: Create a new image from the wbmp file or URL
IMAGECREATEFROMXBM function: Create a new image from the XBM file or URL
imagecreatefromxpm function: Create a new image from the xpm file or URL
Imagecreatetruecolor function: Create a new true color image
Imagedashedline function: Draw a dashed line
Imagedestroy function: Destroying an image
Imageellipse function: Draw an ellipse
Imagefill function: Fills an area with the specified color
Imagefilledarc function: Draw an elliptical arc and fill it
Imagefilledellipse function: Draw an ellipse and fill
Imagefilledpolygon function: Draw a polygon and fill
Imagefilledrectangle function: Draw a rectangle and fill
Imagefilltoborder function: Area fills the bounds of the specified color
ImageFilter function: Using filters on images
imagefontheight function: Get font height
imagefontwidth function: Get font width
Imageftbbox function: Give a text box with FreeType2 font
Imagefttext function: Writing text to an image using a FreeType2 font
Imagegammacorrect function: Applying gamma correction to GD image
IMAGEGD2 function: Output GD 2 image to browser or file
IMAGEGD function: Output GD image to browser or file
Imagegif function: Output an image to a browser or file in GIF format
Imageinterlace function: Activates or disables interlaced scanning
Imageistruecolor function: Check if the image is a true color image
imagejpeg function: Output images to a browser or file in JPEG format
Imagelayereffect function: Sets the alpha color-blending flag to use the bound libgd layering effect
Imageline function: Draw a line segment
Imageloadfont function: Load a new font
imagepalettecopy function: Copy palette from one image to another
Imagepng function: Output images to a browser or file in PNG format
Imagepolygon function: Draw a polygon
Imagepsbbox function: Give a text box with PostScript Type1 font
Imagepsencodefont function: Changing the character encoding vector in a font
Imagepsextendfont functions: Expanding or refining fonts
Imagepsfreefont function: Releases the memory occupied by a PostScript Type1 font
Imagepsloadfont function: Loading a PostScript Type1 font from a file
Imagepsslantfont function: Tilt a font
Imagepstext function: Use PostScript Type1 font to draw text string on image
Imagerectangle function: Draw a rectangle
imagerotate function: Rotate an image with a given angle
Imagesavealpha function: Set tags to save full alpha channel information when you save a PNG image
Imagesetbrush function: Sets the brush image for drawing lines
Imagesetpixel function: Draw a single pixel
Imagesetstyle function: Set the style of line drawing
imagesetthickness function: Sets the width of the drawing line
Imagesettile function: Set the map for filling
imagestring function: Draw a line of string horizontally
Imagestringup function: To draw a line of string vertically
Imagesx function: Get image width
Imagesy function: Get image Height
Imagetruecolortopalette function: Converting a true color image to a palette image
Imagettfbbox function: Get the range of text using TrueType fonts
Imagettftext function: Writing text to an image with TrueType fonts
Imagetypes function: Returns the type of image supported by the current PHP version
imagewbmp function: Output an image to a browser or file in wbmp format
IMAGEXBM function: Output a XBM image to a browser or file
iptcembed function: Embed binary IPTC data into a JPEG image
iptcparse function: Resolves a binary IPTC block to a single tag
Jpeg2wbmp function: Convert a JPEG image file to a wbmp image file
Png2wbmp function: Convert a PNG image file to a wbmp image file