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  1. <?php
  2. $str = 'some_string\\\\';
  3. var_dump(preg_replace("/(\/\/)/", "", $str));
  4.  
  5. $str = '//some_string\\\\';
  6. var_dump(preg_replace("/(\/\/)/", "", $str));
  7.  
  8. $str = 'some_string\\\\';
  9. var_dump(preg_replace("//", addslashes($str), "hi"));
  10.  
  11. $str = 'some_string\\\\';
  12. var_dump(addslashes(preg_replace("//", $str, "hi")));
Success #stdin #stdout 0.02s 24000KB
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Standard input is empty
stdout
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string(13) "some_string\\"
string(13) "some_string\\"
string(41) "some_string\\hsome_string\\isome_string\\"
string(41) "some_string\\hsome_string\\isome_string\\"
https://ideone.com/5aZ23G
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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