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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>Stop buffering write requests to the Phar archive, and save changes to disk</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="phar.startbuffering.html">Phar::startBuffering</a></div> <div class="next" style="text-align: right; float: right;"><a href="phar.uncompressallfiles.html">Phar::uncompressAllFiles</a></div> <div class="up"><a href="class.Phar.html">Phar</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="phar.stopbuffering" class="refentry"> <div class="refnamediv"> <h1 class="refname">Phar::stopBuffering</h1> <p class="verinfo">(PECL phar:1.0.0-1.2.1)</p><p class="refpurpose"><span class="refname">Phar::stopBuffering</span> — <span class="dc-title">Stop buffering write requests to the Phar archive, and save changes to disk</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type"><span class="type void">void</span></span> <span class="methodname"><b><b>Phar::stopBuffering</b></b></span> ( <span class="methodparam">void</span> )</div> <p class="para rdfs-comment"> <b>stopBuffering()</b> is used in conjunction with the <b>startBuffering()</b> method. <b>startBuffering()</b> can provide a significant performance boost when creating or modifying a Phar archive with a large number of files. Ordinarily, every time a file within a Phar archive is created or modified in any way, the entire Phar archive will be recreated with the changes. In this way, the archive will be up-to-date with the activity performed on it. </p> <p class="para"> However, this can be unnecessary when simply creating a new Phar archive, when it would make more sense to write the entire archive out at once. Similarly, it is often necessary to make a series of changes and to ensure that they all are possible before making any changes on disk, similar to the relational database concept of transactions. The <b>startBuffering()</b>/<b>stopBuffering()</b> pair of methods is provided for this purpose. </p> <p class="para"> Phar write buffering is per-archive, buffering active for the <i>foo.phar</i> Phar archive does not affect changes to the <i>bar.phar</i> Phar archive. </p> </div> <div class="refsect1 errors"> <h3 class="title">Errors/Exceptions</h3> <p class="para"> <a href="class.PharException.html" class="classname">PharException</a> is thrown if any problems are encountered flushing changes to disk. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 A <b>Phar::stopBuffering()</b> example</b></p> <div class="example-contents"><p> </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$p </span><span style="color: #007700">= new </span><span style="color: #0000BB">Phar</span><span style="color: #007700">(</span><span style="color: #0000BB">dirname</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">) . </span><span style="color: #DD0000">'/brandnewphar.phar'</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #DD0000">'brandnewphar.phar'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$p</span><span style="color: #007700">[</span><span style="color: #DD0000">'file1.txt'</span><span style="color: #007700">] = </span><span style="color: #DD0000">'hi'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$p</span><span style="color: #007700">-></span><span style="color: #0000BB">startBuffering</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$p</span><span style="color: #007700">-></span><span style="color: #0000BB">getStub</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">$p</span><span style="color: #007700">-></span><span style="color: #0000BB">setStub</span><span style="color: #007700">(</span><span style="color: #DD0000">"<?php<br />function __autoload(\$class)<br />{<br /> include 'phar://brandnewphar.phar/' . str_replace('_', '/', \$class) . '.php';<br />}<br />Phar::mapPhar('brandnewphar.phar');<br />include 'phar://brandnewphar.phar/startup.php';<br />__HALT_COMPILER();"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$p</span><span style="color: #007700">-></span><span style="color: #0000BB">stopBuffering</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$p</span><span style="color: #007700">-></span><span style="color: #0000BB">getStub</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>string(24) "<?php __HALT_COMPILER();"string(195) "<?phpfunction __autoload($class){ include 'phar://' . str_replace('_', '/', $class);}Phar::mapPhar('brandnewphar.phar');include 'phar://brandnewphar.phar/startup.php';__HALT_COMPILER();"</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="phar.startbuffering.html" class="function" rel="rdfs-seeAlso">Phar::startBuffering()</a></li> <li class="member"><a href="phar.isbuffering.html" class="function" rel="rdfs-seeAlso">Phar::isBuffering()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="phar.startbuffering.html">Phar::startBuffering</a></div> <div class="next" style="text-align: right; float: right;"><a href="phar.uncompressallfiles.html">Phar::uncompressAllFiles</a></div> <div class="up"><a href="class.Phar.html">Phar</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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