php - 拆分并回显到列表中

Question

我有一个像这样的充满地址的sql表

Hattie:07903 000066::Dad:07854 000095::Tom:07903 000044::Allistair:07765 000005::Home:0115 974 0000::

我想拆分每个联系人，以便每个联系人的姓名和号码都回显到列表框中的单独面板中，如下所示

<ol>
<li>Hattie:07903 000066</li>
<li>Dad:07854 000095</li>
</ol> 

任何帮助都会很棒。

谢谢

SEO Leicester

Answer 1

在 Perl 中毫不费力:

#! /usr/bin/perl

local $_ = "Hattie:07903 000066::Dad:07854 000095::Tom:07903 000044::Allistair:07765 000005::Home:0115 974 0000::";

print "<ol>\n",
      map("<li>$_</li>\n", split /::/),
      "</ol>\n";

如您的问题所用，序列 :: 是一个终止符 而不是分隔符，这使得 split有点概念不匹配。为了更符合格式，请在列表上下文中使用正则表达式匹配 /g

The /g modifier specifies global pattern matching—that is, matching as many times as possible within the string. How it behaves depends on the context. In list context, it returns a list of the substrings matched by any capturing parentheses in the regular expression.

和一个非贪婪量词

By default, a quantified subpattern is “greedy,” that is, it will match as many times as possible (given a particular starting location) while still allowing the rest of the pattern to match. If you want it to match the minimum number of times possible, follow the quantifier with a ?. Note that the meanings don't change, just the “greediness” …

相当于

print "<ol>\n",
      map("<li>$_</li>\n", /(.+?)::/g),
      "</ol>\n";

无论哪种方式，输出都是

<ol>
<li>Hattie:07903 000066</li>
<li>Dad:07854 000095</li>
<li>Tom:07903 000044</li>
<li>Allistair:07765 000005</li>
<li>Home:0115 974 0000</li>
</ol>