decimal number with ceil or floor in php-CodePudding

I have a result of decimal number

0.666667

and i wold like to fool it or round it to 0.6,

number_format((float)0.66667, 1, '.', '')

but I get 0.7

floor(0.66667)

gives me 0

how can i take this result and floor it to 0.6 or ceil it to 0.7

CodePudding user response：

function floordec($zahl,$decimals=1){   
 return floor($zahl*pow(10,$decimals))/pow(10,$decimals);
}
echo floordec(0.66667);

CodePudding user response：

You can multiply by 10, floor(), then divide by 10 again.

floor( 0.666667 * 10 ) / 10