php-doc-en/reference/image/constants.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<appendix xml:id="image.constants" xmlns="http://docbook.org/ns/docbook">
 &reftitle.constants;
 &extension.constants;
 <variablelist>
  <varlistentry>
   <term>
    <constant>GD_VERSION</constant>
    (<type>string</type>)
   </term>
   <listitem>
    <simpara>
     The GD version PHP was compiled against.
     (Available as of PHP 5.2.4)
    </simpara>
   </listitem>
  </varlistentry>

  <varlistentry>
   <term>
    <constant>GD_MAJOR_VERSION</constant>
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     The GD major version PHP was compiled against.
     (Available as of PHP 5.2.4)
    </simpara>
   </listitem>
  </varlistentry>

  <varlistentry>
   <term>
    <constant>GD_MINOR_VERSION</constant>
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     The GD minor version PHP was compiled against.
     (Available as of PHP 5.2.4)
    </simpara>
   </listitem>
  </varlistentry>

  <varlistentry>
   <term>
    <constant>GD_RELEASE_VERSION</constant>
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     The GD release version PHP was compiled against.
     (Available as of PHP 5.2.4)
    </simpara>
   </listitem>
  </varlistentry>

  <varlistentry>
   <term>
    <constant>GD_EXTRA_VERSION</constant>
    (<type>string</type>)
   </term>
   <listitem>
    <simpara>
     The GD "extra" version (beta/rc..) PHP was compiled against.
     (Available as of PHP 5.2.4)
    </simpara>
   </listitem>
  </varlistentry>

  <varlistentry>
   <term>
    <constant>GD_BUNDLED</constant>
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     When the bundled version of GD is used this is 1 otherwise 
     its set to 0.
    </simpara>
   </listitem>
  </varlistentry>

  <varlistentry>
   <term>
    <constant>IMG_GIF</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Used as a return value by <function>imagetypes</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_JPG</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Used as a return value by <function>imagetypes</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_JPEG</constant> 
     (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Used as a return value by <function>imagetypes</function>
    </simpara>
    <note>
     <para>
      This constant has the same value as <constant>IMG_JPG</constant>
     </para>
    </note>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_PNG</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Used as a return value by <function>imagetypes</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_WBMP</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Used as a return value by <function>imagetypes</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_XPM</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Used as a return value by <function>imagetypes</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_COLOR_TILED</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special color option which can be used in stead of color allocated with
     <function>imagecolorallocate</function> or
     <function>imagecolorallocatealpha</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_COLOR_STYLED</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special color option which can be used in stead of color allocated with
     <function>imagecolorallocate</function> or
     <function>imagecolorallocatealpha</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_COLOR_BRUSHED</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special color option which can be used in stead of color allocated with
     <function>imagecolorallocate</function> or
     <function>imagecolorallocatealpha</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_COLOR_STYLEDBRUSHED</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special color option which can be used in stead of color allocated with
     <function>imagecolorallocate</function> or
     <function>imagecolorallocatealpha</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_COLOR_TRANSPARENT</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special color option which can be used in stead of color allocated with
     <function>imagecolorallocate</function> or
     <function>imagecolorallocatealpha</function>
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_ARC_ROUNDED</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A style constant used by the <function>imagefilledarc</function> function.
    </simpara>
    <note>
     <para>
      This constant has the same value as <constant>IMG_ARC_PIE</constant>
     </para>
    </note>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_ARC_PIE</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A style constant used by the <function>imagefilledarc</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_ARC_CHORD</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A style constant used by the <function>imagefilledarc</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_ARC_NOFILL</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A style constant used by the <function>imagefilledarc</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_ARC_EDGED</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A style constant used by the <function>imagefilledarc</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_GD2_RAW</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A type constant used by the <function>imagegd2</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_GD2_COMPRESSED</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A type constant used by the <function>imagegd2</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_EFFECT_REPLACE</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Alpha blending effect used by the <function>imagelayereffect</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_EFFECT_ALPHABLEND</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Alpha blending effect used by the <function>imagelayereffect</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_EFFECT_NORMAL</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Alpha blending effect used by the <function>imagelayereffect</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_EFFECT_OVERLAY</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Alpha blending effect used by the <function>imagelayereffect</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_NEGATE</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_GRAYSCALE</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_BRIGHTNESS</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_CONTRAST</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_COLORIZE</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_EDGEDETECT</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_GAUSSIAN_BLUR</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_SELECTIVE_BLUR</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_EMBOSS</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_MEAN_REMOVAL</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_SMOOTH</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMG_FILTER_PIXELATE</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Special GD filter used by the <function>imagefilter</function> function. 
     (Available as of PHP 5.3.0)
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_GIF</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_JPEG</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_JPEG2000</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_PNG</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_SWF</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_PSD</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_BMP</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_WBMP</constant>
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_XBM</constant>
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_TIFF_II</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_TIFF_MM</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_IFF</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_JB2</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_JPC</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_JP2</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_JPX</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_SWC</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>IMAGETYPE_ICO</constant>
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     Image type constant used by the
     <function>image_type_to_mime_type</function> and
     <function>image_type_to_extension</function> functions.
     (Available as of PHP 5.3.0)
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>PNG_NO_FILTER</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A special PNG filter, used by the <function>imagepng</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>PNG_FILTER_NONE</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A special PNG filter, used by the <function>imagepng</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>PNG_FILTER_SUB</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A special PNG filter, used by the <function>imagepng</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>PNG_FILTER_UP</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A special PNG filter, used by the <function>imagepng</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>PNG_FILTER_AVG</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A special PNG filter, used by the <function>imagepng</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>PNG_FILTER_PAETH</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A special PNG filter, used by the <function>imagepng</function> function.
    </simpara>
   </listitem>
  </varlistentry>
  <varlistentry>
   <term>
    <constant>PNG_ALL_FILTERS</constant> 
    (<type>integer</type>)
   </term>
   <listitem>
    <simpara>
     A special PNG filter, used by the <function>imagepng</function> function.
    </simpara>
   </listitem>
  </varlistentry>
 </variablelist>
</appendix>
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