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<?php
 
$test = "asdfas==адъфасдфас==asdfasd";
preg_match_all("/[[:ascii:]]+/",$test,$matches);
print_r($matches);

Success #stdin #stdout 0.01s 20568KB

stdin

Standard input is empty

stdout

Array
(
    [0] => Array
        (
            [0] => asdfas==
            [1] => ==asdfasd
        )

)

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language:

PHP (php 7.3.5)

created:

visibility:

public

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