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@ 2020-01-24T15:40:21Z

<?php

function initiales($string) { 
    return preg_replace('#\B\p{L}\p{M}*+|\s+#u', '', $string); 
}

echo initiales("I've got 21 cats and 1 dog!") . PHP_EOL;
echo initiales("Je suis arrivée le 17 septembre.");

Output
Performance
VLD
References
Branches

preg_replace: documentation ( source)

preferences:dark modelive previewkey bindings

25.83 ms | 404 KiB | 5 Q