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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Predefined Constants</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="image.resources.html">Resource Types</a></div> <div class="next" style="text-align: right; float: right;"><a href="image.examples.html">Examples</a></div> <div class="up"><a href="book.image.html">GD</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div> <h1>Predefined Constants</h1> <p class="simpara">The constants below are defined by this extension, andwill only be available when the extension has eitherbeen compiled into PHP or dynamically loaded at runtime.</p> <dl> <dt> <span class="term"> <b><tt>GD_VERSION</tt></b> (<a href="language.types.string.html" class="type string">string</a>) </span> <dd> <span class="simpara"> The GD version PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt> <span class="term"> <b><tt>GD_MAJOR_VERSION</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> The GD major version PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt> <span class="term"> <b><tt>GD_MINOR_VERSION</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> The GD minor version PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt> <span class="term"> <b><tt>GD_RELEASE_VERSION</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> The GD release version PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt> <span class="term"> <b><tt>GD_EXTRA_VERSION</tt></b> (<a href="language.types.string.html" class="type string">string</a>) </span> <dd> <span class="simpara"> The GD "extra" version (beta/rc..) PHP was compiled against. (Available as of PHP 5.2.4) </span> </dd> </dt> <dt> <span class="term"> <b><tt>GD_BUNDLE</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> When the bundled version of GD is used this is 1 otherwise its set to 0. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_GIF</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Used as a return value by <a href="function.imagetypes.html" class="function">imagetypes()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_JPG</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Used as a return value by <a href="function.imagetypes.html" class="function">imagetypes()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_JPEG</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Used as a return value by <a href="function.imagetypes.html" class="function">imagetypes()</a> </span> <blockquote><p><b class="note">Note</b>: This constant has the same value as <b><tt>IMG_JPG</tt></b> <br /> </p></blockquote> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_PNG</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Used as a return value by <a href="function.imagetypes.html" class="function">imagetypes()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_WBMP</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Used as a return value by <a href="function.imagetypes.html" class="function">imagetypes()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_XPM</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Used as a return value by <a href="function.imagetypes.html" class="function">imagetypes()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_COLOR_TILED</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a> or <a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_COLOR_STYLED</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a> or <a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_COLOR_BRUSHED</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a> or <a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_COLOR_STYLEDBRUSHED</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a> or <a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_COLOR_TRANSPARENT</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Special color option which can be used in stead of color allocated with <a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a> or <a href="function.imagecolorallocatealpha.html" class="function">imagecolorallocatealpha()</a> </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_ARC_ROUNDED</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> A style constant used by the <a href="function.imagefilledarc.html" class="function">imagefilledarc()</a> function. </span> <blockquote><p><b class="note">Note</b>: This constant has the same value as <b><tt>IMG_ARC_PIE</tt></b> <br /> </p></blockquote> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_ARC_PIE</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> A style constant used by the <a href="function.imagefilledarc.html" class="function">imagefilledarc()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_ARC_CHORD</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> A style constant used by the <a href="function.imagefilledarc.html" class="function">imagefilledarc()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_ARC_NOFILL</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> A style constant used by the <a href="function.imagefilledarc.html" class="function">imagefilledarc()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_ARC_EDGED</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> A style constant used by the <a href="function.imagefilledarc.html" class="function">imagefilledarc()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_GD2_RAW</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> A type constant used by the <a href="function.imagegd2.html" class="function">imagegd2()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_GD2_COMPRESSED</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> A type constant used by the <a href="function.imagegd2.html" class="function">imagegd2()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_EFFECT_REPLACE</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Alpha blending effect used by the <a href="function.imagelayereffect.html" class="function">imagelayereffect()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_EFFECT_ALPHABLEND</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Alpha blending effect used by the <a href="function.imagelayereffect.html" class="function">imagelayereffect()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_EFFECT_NORMAL</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Alpha blending effect used by the <a href="function.imagelayereffect.html" class="function">imagelayereffect()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_EFFECT_OVERLAY</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Alpha blending effect used by the <a href="function.imagelayereffect.html" class="function">imagelayereffect()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_FILTER_NEGATE</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Special GD filter used by the <a href="function.imagefilter.html" class="function">imagefilter()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_FILTER_GRAYSCALE</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Special GD filter used by the <a href="function.imagefilter.html" class="function">imagefilter()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_FILTER_BRIGHTNESS</tt></b> (<a href="language.types.integer.html" class="type integer">integer</a>) </span> <dd> <span class="simpara"> Special GD filter used by the <a href="function.imagefilter.html" class="function">imagefilter()</a> function. </span> </dd> </dt> <dt> <span class="term"> <b><tt>IMG_FILTER_CONTRAST</tt></b> ⌨️ 快捷键说明
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