reference/image/book.xml
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213fbd9440a224f9c1da4942c85124ce0c120c52
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used to create and manipulate image files in a variety of different
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image formats, including <acronym>GIF</acronym>, <acronym>PNG</acronym>,
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<acronym>JPEG</acronym>, <acronym>WBMP</acronym>, and <acronym>XPM</acronym>.
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Even more convenient, PHP can output image streams directly to a browser. You
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Even more conveniently, PHP can output image streams directly to a browser. You
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will need to compile PHP with the <acronym>GD</acronym> library of image
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functions for this to work. <acronym>GD</acronym> and PHP may also require
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other libraries, depending on which image formats you want to work with.
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The <function>getimagesize</function> function does not require the GD extension.
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</simpara>
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</note>
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<caution>
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<simpara>
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While the bundled version of the GD library uses the Zend memory manager to
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allocate memory, system versions do not, so that <link
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linkend="ini.memory-limit">memory_limit</link> does not apply.
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</simpara>
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</caution>
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</para>
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<para>
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<entry>GIF</entry>
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<entry>&true;</entry>
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<entry>&true;</entry>
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<entry>Available as of GD 2.0.28 and PHP 5.0.1</entry>
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<entry></entry>
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</row>
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<row>
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<entry>XBM</entry>
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<entry>XPM</entry>
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<entry>&true;</entry>
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<entry>&false;</entry>
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<entry>Read support available on Windows as of PHP 5.3.19.</entry>
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<entry></entry>
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</row>
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<row>
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<entry>WBMP</entry>
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<entry>WebP</entry>
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<entry>&true;</entry>
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<entry>&true;</entry>
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<entry>PHP 5.5+</entry>
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<entry></entry>
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</row>
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<row>
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<entry>BMP</entry>
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<entry>&true;</entry>
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<entry>&true;</entry>
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<entry>Available as of PHP 7.2.0</entry>
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</row>
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</tbody>
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</tgroup>
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&reference.image.constants;
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&reference.image.examples;
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&reference.image.reference;
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&reference.image.gdimage;
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&reference.image.gdfont;
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</book>
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