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@ 2021-07-21T00:45:46Z

<?php

$txt = 'Lot99. Is it 1+3 or 5 or 6.53';
var_export(
    preg_split('~(?:\d+\.\d+|\w+|\S)\K *~', $txt, 0, PREG_SPLIT_NO_EMPTY)
);

Output
Performance
VLD
References
Branches

var_export: documentation ( source)
preg_split: documentation ( source)

preferences:dark modelive previewkey bindings

35.37 ms | 405 KiB | 5 Q