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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>Program execution Functions</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="book.exec.html">Program execution</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.escapeshellarg.html">escapeshellarg</a></div> <div class="up"><a href="book.exec.html">Program execution</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div> <h1 class="title">Program execution Functions</h1> <div class="partintro"> <div id="exec.notes" class="section"> <h2 class="title">Notes</h2> <div class="warning"><b class="warning">Warning</b> <p class="para"> Open files with lock (especially open sessions) should be closed before executing a program in the background. </p> </div> </div> <div id="exec.seealso" class="section"> <h2 class="title">See Also</h2> <p class="para"> These functions are also closely related to the <a href="language.operators.execution.html" class="link">backtick operator</a>. Also, while in <a href="features.safe-mode.html#ini.safe-mode" class="link">safe mode</a> you must consider the <a href="features.safe-mode.html#ini.safe-mode-exec-dir" class="link"> safe_mode_exec_dir</a> directive. </p> </div> </div> <h2>Table of Contents</h2><ul class="chunklist chunklist_reference"><li><a href="function.escapeshellarg.html">escapeshellarg</a> 鈥⌨️ 快捷键说明
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