Differences between sprintf and printf functions in php-php Tutorial

Differences between sprintf and printf functions in php The following is an example: Rounding the last two decimal places to retain & lt ;? Php $ num121; echosprintf (% 0.2f, $ num1 ). & lt; br & gt; output 21.00 $ num216.3287; echosprintf (% 0.2f, $ num2 ). & lt; br & gt; differences between sprintf and printf functions in php

The following is an example: rounding to the last two decimal places

 "; // Output 21.00 $ num2 = 16.3287; echo sprintf (" % 0.2f ", $ num2 )."
"; // Output 16.33 $ num3 = 32.12329; echo sprintf (" % 0.2f ", $ num3 )."
"; // Output 32.12?>

Explain the meaning of % 0.2f:

% Indicates the start character.
0 indicates that the vacancy is filled with 0
2 indicates two digits after the decimal point
F indicates converting to a floating point number.

Conversion character
=-
% Indicates the percentage, which is not converted.
The integer B is converted into binary.
Convert an integer in c to an ASCII character.
D integer to decimal place.
F times the precision number to the floating point number.
O integer to octal.
The s integer is converted into a string.
Convert an integer to a lowercase hexadecimal value.
Convert X to uppercase hexadecimal.

Differences between printf and sprintf

1. printf function:

Int printf (string format [, mixed args [, mixed...])

Produces output according to format, which is described in the documentation for sprintf ().

Returns the length of the outputted string.

Format the text and output it, for example:

$name="hunte"; $age=25; printf("my name is %s, age %d", $name, $age);

2. sprintf function:
String sprintf (string format [, mixed args [, mixed...])

Returns a string produced according to the formatting string format.

Similar to printf, but not printed, the formatted text is returned. Others are the same as printf.

3. print function:

Yes. one value can be returned and only one parameter is allowed.

Int print (string arg)

Outputs arg. Returns 1, always.