PHP code that converts a color to its inverse color

This PHP code can turn a color into the opposite color code, such as: White Turns black, blue turns yellow function Color_inverse ($color) { $color = Str_replace (' # ', ' ', $color); if (strlen ($color)! = 6) {return ' 000000 ';} $rgb = "; for ($x =0; $x <3; $x + +) { $c = 255-hexdec (substr ($color, (+ $x), 2)); $c = ($c < 0)? 0:dechex ($c); $rgb. = (strlen ($c) < 2)? ' 0 '. $c: $c; } Return ' # '. $rgb; } Examples of Use: Black-White Print Color_inverse (' #000000 '); -Returns #ffffff Blue-Yellow Print Color_inverse (' #0000FF '); -#FFFF00 Copy Code

Convert to, its inverse, PHP

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