parsing PHP common image function set _php techniques

Gd_info function: Get information on the currently installed GD library
getimagesize function: Gets the size of the image
Image_type_to_extension function: Gets the file suffix of the image type
Image_type_to_mime_type function: To determine the MIME type of a ImageType constant
image2wbmp function: Output an image to a browser or file in wbmp format
imagealphablending function: Setting the image blending mode
Imageantialias function: Whether to use the AntiAlias (anti-aliasing) feature
Imagearc function: Draw an elliptical arc
Imagechar function: To draw a character horizontally
Imagecharup function: Draw a character vertically
imagecolorallocate function: Assigning color to an image
Imagecolorallocatealpha function: Assign 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 plus transparency
IMAGECOLORCLOSESTHWB function: Gets the black and white index of the nearest chroma to the specified color
Imagecolordeallocate function: Remove Image Color Assignment
Imagecolorexact function: Gets the index value of the specified color
Imagecolorexactalpha function: Gets the index value of the specified color plus transparency
Imagecolormatch function: Makes the color palette version of an image more matched to the true color version
Imagecolorresolve function: Gets the index value of the specified color or the nearest alternate value that is likely to be obtained
Imagecolorresolvealpha function: Gets the index value of the specified color transparency or the closest possible substitution value
Imagecolorset function: Sets the 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: Define a color as a transparent color
Imageconvolution function: Apply for a 3*3 convolution matrix
imagecopy function: Copying part of an image
Imagecopymerge function: Copy and merge part of an image
Imagecopymergegray function: Copy and merge part of image with grayscale
imagecopyresampled function: Resample copied part of image and resize
imagecopyresized function: Copy partial images and resize
Imagecreate function: Create a new palette-based image

IMAGECREATEFROMGD2 function: Create a new image from the GD 2 file or URL
Imagecreatefromgd2part function: Creates 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 a wbmp file or URL
IMAGECREATEFROMXBM function: Create a new image from a XBM file or URL
imagecreatefromxpm function: Create a new image from a xpm file or URL
Imagecreatetruecolor function: Create a new true color image
Imagedashedline function: Draw a dotted 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
Imagefilledellipse function: Draw an ellipse and populate
Imagefilledpolygon function: Draw a polygon and fill
Imagefilledrectangle function: Draw a rectangle and populate
Imagefilltoborder function: The range fills the bounds of the specified color
ImageFilter function: Using Filters for images
imagefontheight function: Get font height
imagefontwidth function: Get font width
Imageftbbox function: Gives a text box that uses the FreeType2 font
Imagefttext function: Writing text to an image using a FreeType2 font
Imagegammacorrect function: Gamma correction applied to GD images
IMAGEGD2 function: Output GD 2 image to browser or file
IMAGEGD function: Output GD image to browser or file
Imagegif function: Print an image to a browser or file in GIF format
Imageinterlace function: Activate or disable interlaced scanning
Imageistruecolor function: Check if the image is a true color image
imagejpeg function: Output an image to a browser or file in JPEG format
Imagelayereffect function: Sets the alpha process color flag to use the bound libgd layering effect
Imageline function: Draw a line segment
Imageloadfont function: Load a new font
imagepalettecopy function: Copy a palette from one image to another
imagepng function: Output an image to a browser or file in PNG format
Imagepolygon function: Draw a polygon
Imagepsbbox function: Gives a text box that uses PostScript Type1 font
Imagepsencodefont function: Changing the character encoding vector in the font
Imagepsextendfont function: Expand or compact fonts
Imagepsfreefont function: Frees memory occupied by a PostScript Type1 font
Imagepsloadfont function: Load a PostScript Type1 font from a file
Imagepsslantfont function: Skew a font
Imagepstext function: Use PostScript Type1 font to draw text strings onto images
Imagerectangle function: Draw a rectangle
imagerotate function: Rotate an image with a given angle
Imagesavealpha function: Sets the tag to save the full alpha channel information when the PNG image is saved
Imagesetbrush function: Sets the brush image used for drawing lines
Imagesetpixel function: Draw a single pixel
Imagesetstyle function: Set the style of drawing lines
imagesetthickness function: Set the width of the drawing line
Imagesettile function: Set the texture for the fill
imagestring function: Horizontally draw a line of strings
Imagestringup function: To draw a line of string vertically
Imagesx function: Get image width
Imagesy function: Get image Height
Imagetruecolortopalette function: Converts a true color image to a palette image
Imagettfbbox function: Gets the range of text that uses TrueType fonts
Imagettftext function: Writing text to an image with a TrueType font
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 in a JPEG image
iptcparse function: Resolves a binary IPTC block to a single tag
jpeg2wbmp function: Converts a JPEG image file to a wbmp image file
Png2wbmp function: Convert PNG image file to wbmp image file