Smarty正则表达式匹配 [英] Smarty Regular Expression Match

问题描述

我有一个聪明的变量，我想知道它是否与某些字符串匹配

I Have a smarty variable, I want to know if it matches some string like

"<whatever>_thestring_<whatever>" 

其中<whatever>代表任何字符序列(或没有字符).

where <whatever> represents any sequence of characters (or no characters).

是否有某种方法可以针对*_thestring_*之类的东西进行测试?

Is there some way to test against something like *_thestring_*?

推荐答案

使用smarty检查另一个字符串中是否存在一个字符串:

Using smarty to check if a string exists inside another string:

{assign "haystack1" "whatever_thestring_whatever"}
{assign "haystack2" "whatever_thestrings_whatever"}

Test haystack1 {if $haystack1|strstr:"_thestring_"}Found!{/if}<br />
Test haystack2 {if $haystack2|strstr:"_thestring_"}Found!{/if}<br /><br />

输出:

Test haystack1 Found!
Test haystack2

或者您可以在Smarty中使用Regex进行更复杂的搜索:

Or you could do a more complex search using Regex in smarty:

{assign "haystack1" "whatever_thestring_whatever"}
{assign "haystack2" "whatever_thestrings_whatever"}

{assign "check_haystack1" $haystack1|regex_replace:"/_thestring_/":" "}
{assign "check_haystack2" $haystack2|regex_replace:"/_thestring_/":" "}

Test haystack1  {if $check_haystack1 !== $haystack1}Found!{/if}<br />
Test haystack2  {if $check_haystack2 !== $haystack2}Found!{/if}<br />

具有以下输出:

Test haystack1 Found!
Test haystack2 

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