function.imagettfbbox.html
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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>Give the bounding box of a text using TrueType fonts</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="function.imagetruecolortopalette.html">imagetruecolortopalette</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagettftext.html">imagettftext</a></div> <div class="up"><a href="ref.image.html">GD Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.imagettfbbox" class="refentry"> <div class="refnamediv"> <h1 class="refname">imagettfbbox</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">imagettfbbox</span> — <span class="dc-title">Give the bounding box of a text using TrueType fonts</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><b><b>imagettfbbox</b></b></span> ( <span class="methodparam"><span class="type">float</span> <tt class="parameter">$size</tt></span> , <span class="methodparam"><span class="type">float</span> <tt class="parameter">$angle</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$fontfile</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$text</tt></span> )</div> <p class="para rdfs-comment"> This function calculates and returns the bounding box in pixels for a TrueType text. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">size</tt></i></span> <dd> <p class="para"> The font size. Depending on your version of GD, this should be specified as the pixel size (GD1) or point size (GD2). </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">angle</tt></i></span> <dd> <p class="para"> Angle in degrees in which <i><tt class="parameter">text</tt></i> will be measured. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">fontfile</tt></i></span> <dd> <p class="para"> The name of the TrueType font file (can be a URL). Depending on which version of the GD library that PHP is using, it may attempt to search for files that do not begin with a leading '/' by appending '.ttf' to the filename and searching along a library-defined font path. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">text</tt></i></span> <dd> <p class="para"> The string to be measured. </p> </dd> </dt> </dl> </p> </div>⌨️ 快捷键说明
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