Предопределенные константы
Перечисленные ниже константы определены данным расширением и могут быть доступны только в том случае, если PHP был собран с поддержкой этого расширения или же в том случае, если данное расширение подгружается во время выполнения.
- GD_VERSION (string)
- The GD version PHP was compiled against. (Available as of PHP 5.2.4)
- GD_MAJOR_VERSION (integer)
- The GD major version PHP was compiled against. (Available as of PHP 5.2.4)
- GD_MINOR_VERSION (integer)
- The GD minor version PHP was compiled against. (Available as of PHP 5.2.4)
- GD_RELEASE_VERSION (integer)
- The GD release version PHP was compiled against. (Available as of PHP 5.2.4)
- GD_EXTRA_VERSION (string)
- The GD "extra" version (beta/rc..) PHP was compiled against. (Available as of PHP 5.2.4)
- IMG_GIF (integer)
- Used as a return value by imagetypes()
- IMG_JPG (integer)
- Used as a return value by imagetypes()
- IMG_JPEG (integer)
-
Used as a return value by imagetypes()
Замечание: This constant has the same value as IMAGE_JPG
- IMG_PNG (integer)
- Used as a return value by imagetypes()
- IMG_WBMP (integer)
- Used as a return value by imagetypes()
- IMG_XPM (integer)
- Used as a return value by imagetypes()
- IMG_COLOR_TILED (integer)
- Special color option which can be used in stead of color allocated with imagecolorallocate() or imagecolorallocatealpha()
- IMG_COLOR_STYLED (integer)
- Special color option which can be used in stead of color allocated with imagecolorallocate() or imagecolorallocatealpha()
- IMG_COLOR_BRUSHED (integer)
- Special color option which can be used in stead of color allocated with imagecolorallocate() or imagecolorallocatealpha()
- IMG_COLOR_STYLEDBRUSHED (integer)
- Special color option which can be used in stead of color allocated with imagecolorallocate() or imagecolorallocatealpha()
- IMG_COLOR_TRANSPARENT (integer)
- Special color option which can be used in stead of color allocated with imagecolorallocate() or imagecolorallocatealpha()
- IMG_ARC_ROUNDED (integer)
-
A style constant used by the imagefilledarc() function.
Замечание: This constant has the same value as IMG_ARC_PIE
- IMG_ARC_PIE (integer)
- A style constant used by the imagefilledarc() function.
- IMG_ARC_CHORD (integer)
- A style constant used by the imagefilledarc() function.
- IMG_ARC_NOFILL (integer)
- A style constant used by the imagefilledarc() function.
- IMG_ARC_EDGED (integer)
- A style constant used by the imagefilledarc() function.
- IMG_GD2_RAW (integer)
- A type constant used by the imagegd2() function.
- IMG_GD2_COMPRESSED (integer)
- A type constant used by the imagegd2() function.
- IMG_EFFECT_REPLACE (integer)
- Alpha blending effect used by the imagelayereffect() function.
- IMG_EFFECT_ALPHABLEND (integer)
- Alpha blending effect used by the imagelayereffect() function.
- IMG_EFFECT_NORMAL (integer)
- Alpha blending effect used by the imagelayereffect() function.
- IMG_EFFECT_OVERLAY (integer)
- Alpha blending effect used by the imagelayereffect() function.
- IMG_FILTER_NEGATE (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_GRAYSCALE (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_BRIGHTNESS (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_CONTRAST (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_COLORIZE (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_EDGEDETECT (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_GAUSSIAN_BLUR (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_SELECTIVE_BLUR (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_EMBOSS (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_MEAN_REMOVAL (integer)
- Special GD filter used by the imagefilter() function.
- IMG_FILTER_SMOOTH (integer)
- Special GD filter used by the imagefilter() function.
- IMAGETYPE_GIF (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_JPEG (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_PNG (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_SWF (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_PSD (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_BMP (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_WBMP (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_XBM (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_TIFF_II (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_TIFF_MM (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_IFF (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_JB2 (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_JPC (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_JP2 (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_JPX (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_SWC (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions.
- IMAGETYPE_ICO (integer)
- Image type constant used by the image_type_to_mime_type() and image_type_to_extension() functions. (Available as of PHP 5.3.0)
- PNG_NO_FILTER (integer)
- A special PNG filter, used by the imagepng() function.
- PNG_FILTER_NONE (integer)
- A special PNG filter, used by the imagepng() function.
- PNG_FILTER_SUB (integer)
- A special PNG filter, used by the imagepng() function.
- PNG_FILTER_UP (integer)
- A special PNG filter, used by the imagepng() function.
- PNG_FILTER_AVG (integer)
- A special PNG filter, used by the imagepng() function.
- PNG_FILTER_PAETH (integer)
- A special PNG filter, used by the imagepng() function.
- PNG_ALL_FILTERS (integer)
- A special PNG filter, used by the imagepng() function.
Коментарии
In case anyone is wondering what these filters are for, have a look at the W3C's specification:
http://www.w3.org/TR/PNG-Filters.html