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PHP Quiz PHP CertificatePHP base_convert() Function
Complete PHP Math Reference
Definition and Usage
The base_convert() function converts a number from one base to another.
Syntax
base_convert(number,frombase,tobase)
| Parameter | Description |
|---|---|
| number | Required. Original value |
| frombase | Required. Original base of number. Frombase has to be between 2 and 36, inclusive. Digits in numbers with a base higher than 10 will be represented with the letters a-z, with a meaning 10, b meaning 11 and z meaning 35. |
| tobase | Required. The base to convert to. Tobase has to be between 2 and 36, inclusive. Digits in numbers with a base higher than 10 will be represented with the letters a-z, with a meaning 10, b meaning 11 and z meaning 35. |
Example 1
Convert an octal number to a decimal number:
<?php
$oct = "0031";
$dec = base_convert($oct,8,10);
echo "$oct in octal is equal to $dec in decimal.";
?>
$oct = "0031";
$dec = base_convert($oct,8,10);
echo "$oct in octal is equal to $dec in decimal.";
?>
The output of the code above will be:
0031 in octal is equal to 25 in decimal.
Example 2
Convert an octal number to a hexadecimal number:
<?php
$oct = "364";
$hex = base_convert($oct,8,16);
echo "$oct in octal is equal to $hex in hexadecimal.";
?>
$oct = "364";
$hex = base_convert($oct,8,16);
echo "$oct in octal is equal to $hex in hexadecimal.";
?>
The output of the code above will be:
364 in octal is equal to f4 in hexadecimal.
Complete PHP Math Reference
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