regex - get the words between two specific characters in php

Solution:

Since the title of the question clearly states:

get the words between two specific characters inphp....

You can use this regex:

preg_match_all('/--#(.*?)#--/', $text, $matches);
print_r($matches[1]);
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Explanation:

--#      # match '--#'
(        # group and capture to \1:
  .*?    #   any character except \n (0 or more times)
)        # end of \1
#--      # match '#--'
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Working Demo

Solution:

Through sed,

$ sed 's/.*--#\(.*\)#--.*/\1/g' file
Section 2

Section 3

Section 4

Section 5
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Solution:

You could try this one:

--#(.*)#
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DEMO

Solution:

If you use BASH

a simple answer without using sed or any other command is by doing the following

 VAR="--#Section 2#-- -##Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt##-"

 #delete from the tail 
 VAR=${VAR%%'#--'*}                             //you will get VAR="--#Section 2"
 #delete from the head
 VAR=${VAR##*'--#'}                             //NOW you'll have VAR="Section 2"
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