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  1. <?php
  2. $A = '[[1][2][3][4]]';
  3. print "[".str_replace(array("[","]"),array("",","),substr($A,2,strlen($A)-4))."]";
Success #stdin #stdout 0.04s 52480KB
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[1,2,3,4]
https://ideone.com/HbAjWN
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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