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  1. <?php
  2.  
  3. function telefono ($telefono=null){
  4. 	$prefisso= substr($telefono , 0 , 3);
  5. 	$restantenum=substr($telefono , 3);
  6. 	return $prefisso . '.' . $restantenum;
  7. }
  8.  
  9. print_r(telefono('3335276282'));
Success #stdin #stdout 0s 82560KB
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Standard input is empty
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333.5276282
https://ideone.com/PZ2P8s
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
secret

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