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  1. <?php
  2.  
  3. $mystring = "A1B22C333";
  4. $pattern  = '~(?<!^)(?=\D)~';
  5. $arr = preg_split($pattern, $mystring);
  6. print_r($arr);
Success #stdin #stdout 0.02s 52432KB
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stdin
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Standard input is empty
stdout
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Array
(
    [0] => A1
    [1] => B22
    [2] => C333
)
https://ideone.com/sFBGqQ
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
secret

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