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<?php $string = "This is a short sentence which should include all regex results"; echo preg_replace_callback( '~(\w{3})?(\w+)~', fn($m) => ($m[1] ? "+" : '') . "$m[0]*", $string );
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
+This* is* a* +short* +sentence* +which* +should* +include* all* +regex* +results*

preferences:
116.11 ms | 407 KiB | 5 Q