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  1. <?php
  2.  
  3. $arr = ['6920709201700750550', '6920702500550400', '69207000550400', '7740641201800750550', '7740642500550400',
  4. '79378270201900750550', '7937822500550400', '79575693201900750550', '7957562500550400', '79575600550400'];
  5.  
  6. $novo = [];
  7.  
  8. foreach($arr as $item){
  9. 	preg_match('/^\d{6}/', $item, $m);
  10. 	if(!in_array($m[0], $novo)){
  11. 		$novo[] = $m[0];
  12. 	}
  13. }
  14.  
  15. print_r($novo);
Success #stdin #stdout 0.01s 82624KB
comments (?)
stdin 
Standard input is empty
stdout 
Array
(
    [0] => 692070
    [1] => 774064
    [2] => 793782
    [3] => 795756
)
https://ideone.com/MkcKiZ
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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