What does 0x33 mean?
To convert a hexadecimal number using the table, take the most significant 4 bits (row) followed by the least significant 4 bits (column); e.g. 0x33 means 00110011, which is the code for the character 3. Some simple rules: the decimal digits 0 – 9 are represented by the codes 0x30 – 0x39.
What is ASCII example?
Pronounced ask-ee, ASCII is the acronym for the American Standard Code for Information Interchange. It is a code for representing 128 English characters as numbers, with each letter assigned a number from 0 to 127. For example, the ASCII code for uppercase M is 77.
What does |= mean in PHP?
Its a bitwise OR assignment operator. See PHP menual $var1 |= $var2 //it means $var1 = $var1 or $var2.
What is the off switcher for Bitwise Operators?
Bitwise-AND is used to turn switches or settings off. A “0” in the bitmask. forces the corresponding bit in the result to a be “0”: 0 & x = 0 (where x may be either “0” or “1”).
What is ASCII binary?
ASCII is an 8-bit code. That is, it uses eight bits to represent a letter or a punctuation mark. Eight bits are called a byte. A binary code with eight digits, such as 1101 10112, can be stored in one byte of computer memory.
How do I write Ascii code?
To insert an ASCII character, press and hold down ALT while typing the character code. For example, to insert the degree (º) symbol, press and hold down ALT while typing 0176 on the numeric keypad. You must use the numeric keypad to type the numbers, and not the keyboard.
What is ASCII GCSE?
The ASCII character set is a 7-bit set of codes that allows 128 different characters. That is enough for every upper-case letter, lower-case letter, digit and punctuation mark on most keyboards. ASCII is only used for the English language.
How do I end a PHP tag?
As in C or Perl, PHP requires instructions to be terminated with a semicolon at the end of each statement. The closing tag of a block of PHP code automatically implies a semicolon; you do not need to have a semicolon terminating the last line of a PHP block.