Format strings for use in printf( ) : printf « Utility Function « PHP

Format strings for use in printf( )

Format               Meaning
%%                   A literal percent character; no matching parameter is required
%b                   Parameter is an integer; express it as binary
%c                   Parameter is an integer; express it as a character with that ASCII value
%d                   Parameter is a positive integer; express it as decimal
%f                   Parameter is a float; express it as a float
%o                   Parameter is an integer; express it as octal
%s                   Parameter is a string; express it as a string
%x                   Parameter is an integer; express it as hexadecimal with lowercase letters
%X                   Parameter is an integer; express it as hexadecimal with uppercase letters
    $number = 123;
    printf("123 in binary is: %b", $number);
    printf("123 in hex is: %h", $number);
    printf("123 as a string is: %s", $number);
    printf("%% allows you to print percent characters");

    $number = 123.456;
    $formatted = number_format($number, 2) . "\n";
    print "Formatted number is $formatted\n";
    printf("Formatted number is %.2f\n", $number);

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