PHP chr () function
Examples
The value returned from a different character ASCII:
<?php
echo chr(52) . "<br>"; // Decimal value
echo chr(052) . "<br>"; // Octal value
echo chr(0x52) . "<br>"; // Hex value
?>
echo chr(52) . "<br>"; // Decimal value
echo chr(052) . "<br>"; // Octal value
echo chr(0x52) . "<br>"; // Hex value
?>
Running instance »
Definition and Usage
chr () function returns the character value from a specified ASCII.
ASCII values may be specified as decimal values, octal values or hexadecimal values. Octal value is defined as with leading zeros, hexadecimal value is defined as with pre 0x.
grammar
chr( ascii )
| 参数 | 描述 |
|---|---|
| ascii | 必需。ASCII 值。 |
technical details
| return value: | Returns the specified character. |
|---|---|
| PHP version: | 4+ |
More examples
Example 1
Octal value 046 to add ASCII characters: &.
<?php
$str = chr(046);
echo("You $str me forever!");
?>
$str = chr(046);
echo("You $str me forever!");
?>
Running instance »
Example 2
Use decimal values 43 and 61 to add ASCII characters: + and =.
<?php
$str = chr(43);
$str2 = chr(61);
echo("2 $str 2 $str2 4");
?>
$str = chr(43);
$str2 = chr(61);
echo("2 $str 2 $str2 4");
?>
Running instance »
PHP String Reference