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代码编辑器：
<?php $num1 = 123456789; $num2 = -123456789; $char = 50; // The ASCII Character 50 is 2 // Note: The format value "%%" returns a percent sign vprintf("%%b = %b<br>",$num1); // Binary number vprintf("%%c = %c<br>",$char); // The ASCII Character vprintf("%%d = %d<br>",$num1) ; // Signed decimal number vprintf("%%d = %d<br>",$num2); // Signed decimal number vprintf("%%e = %e<br>",$num1); // Scientific notation (lowercase) vprintf("%%E = %E<br>",$num1); // Scientific notation (uppercase) vprintf("%%u = %u<br>",$num1); // Unsigned decimal number (positive) vprintf("%%u = %u<br>",$num2); // Unsigned decimal number (negative) vprintf("%%f = %f<br>",$num1); // Floating-point number (local settings aware) vprintf("%%F = %F<br>",$num1); // Floating-point number (not local sett aware) vprintf("%%g = %g<br>",$num1) ; // Shorter of %e and %f vprintf("%%G = %G<br>",$num1) ; // Shorter of %E and %f vprintf("%%o = %o<br>",$num1) ; // Octal number vprintf("%%s = %s<br>",$num1) ; // String vprintf("%%x = %x<br>",$num1); // Hexadecimal number (lowercase) vprintf("%%X = %X<br>",$num1); // Hex a decimal number (uppercase) vprintf("%%+d = %+d<br>",$num1) ; // Sign specifier (positive) vprintf("%%+d = %+d<br>",$num2) ;
运行结果：