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@ 2021-04-02T13:27:06Z

<?php

$a ="NewYorkNewYork";
$reg="/[a-z]([A-Z])/";
echo preg_replace($reg, "$1", $a);

Output
Performance
VLD
References
Branches

preg_replace: documentation ( source)

preferences:dark modelive previewkey bindings

33.06 ms | 404 KiB | 5 Q