php 不推荐使用的函数删除和替换问题
我正在尝试用新推荐的函数替换 PHP 源代码中已弃用的函数。但是，按照 php 手册中的建议，用正则表达式模式中的“i”将 eregi 函数替换为 preg_match 函数时遇到了一个大问题。下面是示例代码：
<?php
$strXml=<<<XMLSTRING
ALIPC231232
TIME
Jan 21 10:43:58 UTC 2011
ORIGINAL REQUEST:
TIME PLEASE
XMLSTRING;
eregi("(TIME)(.*)(ORIGINAL REQUEST:)" , $strXml, $matches);
echo "begin_ck_eregi_match1:".$matches[1].":end_ck_eregi_match1";
echo "begin_ck_eregi_match2:".$matches[2].":end_ck_eregi_match2";
preg_match("/(TIME)(.*)(ORIGINAL REQUEST:)/i" , $strXml, $match);
echo "begin_ck_preg_match_match1:".$match[1].":end_ck_preg_match_match1";
echo "begin_ck_preg_match_match2:".$match[2].":end_ck_preg_match_match2";
?>
在上面的代码中，当根据模式测试字符串时，eregi 正确地给出了匹配；但是当 preg_match 用于相同的字符串并针对相同的模式对其进行测试时，不会返回任何匹配项。我不明白为什么？我一定是在这里错过了一些东西。请您帮我解决这个问题。
I am trying to replace the deprecated functions in my PHP source code with new recommended ones. But I was having a big problem with replacing eregi function with preg_match function with an "i" in the regex pattern as suggested in the php manual. Here is the sample code:
<?php
$strXml=<<<XMLSTRING
ALIPC231232
TIME
Jan 21 10:43:58 UTC 2011
ORIGINAL REQUEST:
TIME PLEASE
XMLSTRING;
eregi("(TIME)(.*)(ORIGINAL REQUEST:)" , $strXml, $matches);
echo "begin_ck_eregi_match1:".$matches[1].":end_ck_eregi_match1";
echo "begin_ck_eregi_match2:".$matches[2].":end_ck_eregi_match2";
preg_match("/(TIME)(.*)(ORIGINAL REQUEST:)/i" , $strXml, $match);
echo "begin_ck_preg_match_match1:".$match[1].":end_ck_preg_match_match1";
echo "begin_ck_preg_match_match2:".$match[2].":end_ck_preg_match_match2";
?>
In the above code, eregi gave matches properly when a string is tested against a pattern; but when preg_match is used over the same string and tested it against the same pattern no matches are returned. I am unable to figure out why? I must me missing something here. Request you to please help me with this.
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.不会匹配换行符。此外，使用s修饰符（称为PCRE_DOTALL）：The dot
.won't match new-lines. Additionally, use thesmodifier (calledPCRE_DOTALL):eregi() 函数使情况-* 在*敏感搜索中。您必须使用 PCREi修饰符以达到相同的结果。eregi() functionmakes case-*in*sensitive search. You'll have to use PCREimodifier to achieve the same results.