The number formatting functions number_format and roundnumber_format () are used to format numbers through a thousand-bit grouping. Syntax: number_format (number, decimals, decimalpoint, separator) parameter description number is required. The number to be formatted. If no other parameters are set, the numeric functions number_format and round are formatted.
The number_format () function uses a thousand-bit grouping to format numbers.
Syntax: number_format (number, decimals, decimalpoint, separator)
Parameter description
Number is required. The number to be formatted. If no other parameter is set, the number is formatted as a comma (,) without a decimal point.
Optional. Specifies the number of decimal places. If this parameter is set, the period (.) is used as the decimal point to format the number.
Decimalpoint is optional. Specifies the string used as the decimal point.
Optional. A string that is required to be used as a thousands separator. Use only the first character of this parameter. For example, "xyz" only outputs "x ".
Note: If this parameter is set, all other parameters are required.
Tips and comments
Note: This function supports one, two, or four parameters (not three ).
The round () function rounds a floating point number.
Syntax: round (x, prec)
Parameter description
X is optional. Specifies the number to be rounded.
Prec is optional. Specifies the number of digits after the decimal point.
Returns the result of rounding x to the specified precision prec (number of digits after decimal point. Prec can also be a negative number or zero (default ).
Note: PHP cannot properly process strings similar to "12,300.2" by default.
