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<?php
$number = "10.5 100.50 10.250";
preg_match_all('/\b[\d]{2}\.\d+\b/', $number , $output);
print_r($output[0]);

Success #stdin #stdout 0.01s 82944KB

stdin

Standard input is empty

stdout

Array
(
    [0] => 10.5
    [1] => 10.250
)

https://ideone.com/iNoH2o

language:

PHP (php 7.3.5)

created:

visibility:

public

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