chr – PHP String Functions

Syntax :

string chr (ascii);

Description :

chr() function will returns a character from the specified ASCII value. The ASCII value can be specified in

• Decimal : Decimal values are defined by a leading 0x.
• Octal : Octal values are defined by a leading 0 (Zero)
• Hex : hex values are defined by a leading 0x.

Parameter :

string –  String to check.

Output :

This will return  a character from the specified ASCII value.

chr() – PHP Functions Example 1 :

echo chr(50) . "<br>"; // Decimal value
echo chr(050) . "<br>"; // Octal value
echo chr(0x50) . "<br>"; // Hex value


In above example ,We have passed ascii value in decimal, Octal ( starting from 0) and Hex (starting from 0x) format. We will get the below output from above example.

Now Output will become –

2
(
P

chr() – PHP Functions Example 2 :

If you want to write “TUTS” in Hex format. add backslash to mulitiple letters, Use below example :

<?php

echo chr(0x54) . “<br>”; // Hex value
echo chr(0x55) . “<br>”; // Hex value
echo chr(0x54) . “<br>”; // Hex value
echo chr(0x53) . “<br>”; // Hex value
?>

Output will be like below:

T
U
T
S