使用regex只读取自己的间隔

Question

你好，这是我的文本内容

data1='res1', data2='res2', data3 = 'anything like data5='', get complete', data4 = 'anything'

我想使用php正则表达式来获取所有（数据）和（数据值），但存在问题。我的问题是data3值(anything like data5='', get complete)内容data5=''和data 5是值而不是数据密钥
在我的程序中，data5检测为单独的键，而这只是data3的值，必须在我的正则表达式中的所有值的数组中检测
我可以使用什么regex来解决此问题，并且regex读取data1、data2、data3、data4与（rest1、res2，（任何类似data5=''、get complete的内容），任何内容）分离？

Answer 1

如果数据结构是固定的，你可以使用这样的东西：

$re = "~ ([^W_]+) h*=h* '(.*?)' h*,h*
         ([^W_]+) h*=h* '(.*?)' h*,h*
         ([^W_]+) h*=h* '(.*?)' h*,h*
         ([^W_]+) h*=h* '(.*?)'         ~x";
$subst = " $1 -> $2n $3 -> $4n $5 -> $6n $7 -> $8n";
$data = "data1='res1', data2='res2', data3 = 'anything like data5='', get complete', data4 = 'anything'nndata1='res1', data2='res2', data3 = 'anything like data5=''', data4 = 'anything'n# Odds single quotendata1=''res1', data2='res2', data3 = 'anything like data5=''', data4 = 'anything'n# Even quotes inside data1ndata1='''res1', data2='res2', data3 = 'anything like data5=''', data4 = 'anything'";
$result = preg_replace($re, $subst, $data);
print_r($result);

输入

data1="s1"，data2="s2"，data3="任何类似data5="的内容，完成"，data4="任何内容"

输出/emspIdeone演示

data1->res1
data2->res2
data3->任何类似data5=''的内容，请完成
data4->任何

---

Regex突破/emspRegex101演示

所有4个部分

~                                 # regex start delimiter
([^W_]+) h*=h* '(.*?)' h*,h* # data1
([^W_]+) h*=h* '(.*?)' h*,h* # data2
([^W_]+) h*=h* '(.*?)' h*,h* # data3
([^W_]+) h*=h* '(.*?)'         # data4
~x                                # close delimiter with 'x' freespace flag

单个数据段的详细信息（例如data1）

([^W_]+) # 1 or more alphanumeric chars (equal to [a-zA-Z0-9])
          # the round brackets save them in $1 group
h*=h*   # zero or more horizontal whitespace chars then a literal '='
          # followed by zero or more whitespace chars again
'(.*?)'   # a single quote "'", zero o more chars of any type, closing quote "'"
          # the lazy modifiers '?' makes it stop at the first single quote 
          # that satisfy also the rest of the regex(!)
h*,h*   # zero or more horizontal whitespace chars then a literal comma ','
          # followed by zero or more whitespace chars again