require和include区别测试 php

andycode

于 2011-04-12 19:13:00 发布

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分类专栏： php 文章标签： include 测试 stream path file c

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本文分析了PHP中require与include函数使用时出现的警告及致命错误，详细解释了找不到指定文件的原因，并展示了如何正确地在PHP脚本中引用外部文件。

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require 'unittestPHP.php';
//Warning: require(unittestPH.php) [function.require]: failed to open stream: No such file or directory in C:/wamp/www/webPHP/webManage/DDT/unittesthelp.php on line 2
//Fatal error: require() [function.require]: Failed opening required 'unittestPH.php' (include_path='.;C:/php5/pear') in C:/wamp/www/webPHP/webManage/DDT/unittesthelp.php on line 2

include 'unittestPHP.php';
//Warning: include(unittestPH.php) [function.include]: failed to open stream: No such file or directory in C:/wamp/www/webPHP/webManage/DDT/unittesthelp.php on line 3
//Warning: include() [function.include]: Failed opening 'unittestPH.php' for inclusion (include_path='.;C:/php5/pear') in C:/wamp/www/webPHP/webManage/DDT/unittesthelp.php on line 3
//Warning: constant() [function.constant]: Couldn't find constant TEST in C:/wamp/www/webPHP/webManage/DDT/unittesthelp.php on line 5