2. Well known or discussed within the PHP community
ʢPHPίϛϡχςΟͰΑ͘ΒΕ͍ͯΔɺٞ͘͠͞Ε͍ͯΔɻʣ 3. Be unique in its approach or function
ʢղܾࡦػೳ͕ϢχʔΫͰ͋Δɻʣ 4. Fill a niche gap in the market
ʢχονͳ伱ؒΛຒΊ͍ͯΔɻʣ ref. https://github.com/ziadoz/awesome-php/blob/master/CONTRIBUTING.md