PHP chr() function

Author：Eve Cole Update Time：2024-12-29 19:48:01

Example

Return characters from different ASCII values:

<?phpecho chr(52) . "<br>"; // Decimal valueecho chr(052) . "<br>"; // Octal valueecho chr(0x52) . "<br>"; // Hex value?>

Definition and usage

The chr() function returns characters from a specified ASCII value.

ASCII values can be specified as decimal, octal, or hexadecimal values. Octal values are defined with leading 0 and hexadecimal values are defined with leading 0x.

grammar

 chr( ascii )

parameter	describe
ascii	Required. ASCII value.

technical details

Return value:	Returns the specified character.
PHP version:	4+

More examples

Example 1

Use the octal value 046 to add the ASCII character: &.

<?php$str = chr(046);echo("You $str me forever!");?>

Example 2

Use decimal values 43 and 61 to add the ASCII characters: + and =.

<?php $str = chr(43);$str2 = chr(61);echo("2 $str 2 $str2 4"); ?>