Implement RSI(14) indicator in PHP

I am looking for a freelancer who can implement the RSI(14) indicator in PHP for a standalone project. [login to view URL] E.g, these are the closes prices of SPY symbol till 2023.11.03: array (size=14) 0 => float 436.02 1 => float 430.21 2 => float 426.43 3 => float 421.19 4 => float 420.46 5 => float 423.63 6 => float 417.55 7 => float 412.55 8 => float 410.68 9 => float 415.59 10 => float 418.2 11 => float 422.66 12 => float 430.76 13 => float 434.69 RSI(14) should be 58.17. You can see closes prices and RSI value: [login to view URL] You may also use this libary: [login to view URL]