php - 匹配像 $Q1o1 这样的子字符串

Question

我需要在 $ 之后拉出这串字符

($Q1==1)and($Q4o=="55")and($Q1o1=="")

我$Q1的意思$Q4o是这些$Q1o1

据我了解，正则表达式应该从$除A-Za-z0-9_. 你能帮我写正则表达式吗？

score 4 · Accepted Answer

This seems to work, at least in Ruby:

/\$\w*/

Be careful with the $, as $ is a reserved symbol in regular expressions that means "end of the string", so you need to escape it.

score 0 · Accepted Answer

/\$([[:alnum:]]+)[[^:alnum:]]/

您需要提取第一个括号表达式。

编辑：我更喜欢另一个建议，使用 \w*

2 回答 2