Differences between sprintf and printf functions in php

Differences between sprintf and printf functions in php

This article mainly introduces the difference between sprintf and printf functions in php. For more information, see

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

 

The Code is as follows:

<? Php

$ Num1 = 21;

Echo sprintf ("% 0.2f", $ num1). "<br/>"; // output 21.00

$ Num2 = 16.3287;

Echo sprintf ("% 0.2f", $ num2). "<br/>"; // output 16.33

$ Num3 = 32.12329;

Echo sprintf ("% 0.2f", $ num3). "<br/>"; // 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:

 

The Code is as follows:

$ 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.