关于 eregi() 和 preg_match() 的问题
我的代码是
if(eregi($pattern,$file)){ $out['文件'][]=$文件; }else
但这在 php 5.3 中不起作用，它显示警报
Function eregi() is deprecated
所以我更改为
if(preg_match($pattern,$file) ){ $out['文件'][]=$文件; }else
但现在它显示
preg_match(): Noending delimiter '.'发现
我是否输入了错误的语法？
My code was
if(eregi($pattern,$file)){
$out['file'][]=$file;
}else
But is doesn't work in php 5.3, it shows the alert
Function eregi() is deprecated
so I changed to
if(preg_match($pattern,$file)){
$out['file'][]=$file;
}else
But now it shows
preg_match(): No ending delimiter '.' found
Did I enter any wrong syntax?
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该模式需要有某种 分隔符 围绕它。
/是典型的，但可以使用“任何非字母数字、非反斜杠、非空白字符”。只需确保您的分隔符不会出现在$pattern本身中。因此，如果您的模式是
http://(.*)，其中已经包含/字符，您可能需要选择其他内容，例如~：或者，如下面的 @jensgram 注释，如果您不能保证您的模式不会包含特定的分隔符字符，您可以使用 preg_quote()，就像这样：
哦，还有，因为你使用的是
eregi()（不区分大小写），您需要添加i修饰符 用于在分隔符之外对模式不区分大小写。The pattern needs to have some sort of delimiter character surrounding it.
/is typical, but "any non-alphanumeric, non-backslash, non-whitespace character" could be used. Just make sure your delimiter character doesn't appear in the$patternitself.So if your pattern was
http://(.*), which already has/characters in it, you might want to choose something else like~:Alternatively, as @jensgram notes below, if you can't guarantee your pattern won't contain a certain delimiter character, you could escape those characters in the pattern with preg_quote(), like so:
Oh, also, since you're using
eregi()(case-insensitive), you'll want to add theimodifier for case-insensitive to your pattern, outside the delimiter.