base_convert

Definition and usage

base_convert() function converts numbers between arbitrary bits.

Example

Example 1

Convert hexadecimal numbers to octal numbers:

 <?php
$hex = "E196" ;
echo base_convert ( $hex , 16 , 8 ) ;
?>

Try it yourself

Example 2

Convert octal numbers to decimal numbers:

 <?php
$oct = "0031" ;
$dec = base_convert ( $oct , 8 , 10 ) ;
echo "The octal $oct is equal to the decimal $dec ." ;
?>

Try it yourself

Example 3

Convert octal numbers to hexadecimal numbers:

 <?php
$oct = "364" ;
$hex = base_convert ( $oct , 8 , 16 ) ;
echo "The octal $oct is equal to the hex $hex ." ;
?>

Try it yourself

grammar

 base_convert ( number , frombase , tobase )

illustrate

Returns a string containing the number expressed in tobase . The number itself's binary system is specified by frombase . Both frombase and tobase can only be between 2 and 36 (including 2 and 36). Numbers higher than decimal are represented by the letter az, for example a means 10, b means 11 and z means 35.