 # PHP Program to convert the base of the number using base_convert() function

## What is meant by base conversion?

The term base-conversion means the conversion of the number system. In this program, we use the built-in function `base_convert()` to convert the type of the number. In the function base_convert() we pass three arguments first is the value to be converted second is the base value of the number to be converted from and at last we pass the base value of the type we convert to. For example, if we enter a decimal value 26 and we want to convert it to hexadecimal then the output will be 1A

Syntax of function base_convert()

``````
base_convert(number,frombase,tobase);
```
```

## How to convert the base of the number using the base_convert() function in PHP?

In this program, we are converting a decimal number into binary, hexadecimal, and octal. For that first, we have to accept the decimal number from the user and assign the value to the variable num. Then to convert decimal to binary we use the function base_convert(num, 10,2) and the result will be assigned to the variable bin, To convert decimal to hexadecimal we use the function base_convert(num, 10,16) and the result will be assigned to the variable hexa and at last To convert decimal to octal we use the function base_convert(num, 10,8) and the result will be assigned to the variable octa. After that, we can print the values of the variable bin as the binary equivalent, hexa as the hexadecimal equivalent, and octa as the octal equivalent of the decimal number entered.

### ALGORITHM

Step 1: Accept the decimal number from the user and assign the value to the variable num

Step 2: To convert decimal to binary we use the function base_convert(num, 10,2) and the result will be assigned to the variable bin

Step 3: To convert decimal to hexadecimal we use the function base_convert(num, 10,16) and the result will be assigned to the variable hexa

Step 4: To convert decimal to octal we use the function base_convert(num, 10,8) and the result will be assigned to the variable octa

Step 5: Print the value in the variable bin as the binary equivalent of the decimal number entered

Step 6: Print the value in the variable hexa as the hexadecimal equivalent of the decimal number entered

Step 7: Print the value in the variable octa as the octal equivalent of the decimal number entered

## PHP Source Code

```                                          ```<?php
\$num = readline("Enter the decimal value: ");
\$bin = base_convert(\$num, 10, 2);
\$hexa = base_convert(\$num, 10, 16);
\$octa = base_convert(\$num, 10, 8);
echo "Binaray equivalent of \$num is \$bin \n";
echo "Hexadecimal equivalent of \$num is \$hexa \n";
echo "Octal equivalent of \$num is \$octa \n";
?>```
```

## OUTPUT

```Enter the decimal value: 58
Binaray equivalent of 58 is 111010
Hexadecimal equivalent of 58 is 3a
Octal equivalent of 58 is 72```
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