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  1. <?php
  2.  
  3. $str = '+@#!+a';
  4. $str = preg_replace('/[^\w-]+/', '', $str);
  5. print_r($str);
Success #stdin #stdout 0s 82624KB
comments (?)
stdin 
Standard input is empty
stdout 
a
https://ideone.com/GYynwc
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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