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PHP chr() function

Syntax

  chr ( integer ) ;
  

Parameter Description
Integer Any integer 0-255 (Required)

Definition

It returns the single character string representation of the ASCII byte-value.

Usage

chr() function is used to find the ASCII character of any integer. For example 64 represent @ symbol.

Example of chr function

<?php

echo chr(35);

?>

You can directly pass the integer into the chr function as shown in above.

More example of chr function

<?php

$str = chr(65);

$str1 = chr(120);

echo " The ASCII character of 65 : " . $str ."
"; echo "The ASCII character of 120 : " . $str1."
"; ?>

Print all ASCII character

  
<?php
for($i=50;$i<=70;$i++)
{
echo $i." ".chr($i)."
"; } ?>&

Output

50 2
51 3
52 4
53 5
54 6
55 7
56 8
57 9
58 :
59 ;
60 <
61 =
62 >
63 ?
64 @
65 A
66 B
67 C
68 D
69 E
70 F

According to the above example we are printing twenty integer and corresponding ASCII character.

We can print all the integer and corresponding ASCII character by initialization of $i=0 and condition $i<=255.

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